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201250080 = 25325178221
BaseRepresentation
bin10111111111011…
…01010100100000
3112000200120012200
423333231110200
5403010000310
631545253200
74662411633
oct1377552440
9460616180
10201250080
11a3667189
1257494200
13329042b5
141ca29c1a
1512a049c0
hexbfed520

201250080 has 144 divisors (see below), whose sum is σ = 727252344. Its totient is φ = 50503680.

The previous prime is 201250057. The next prime is 201250087. The reversal of 201250080 is 80052102.

It can be written as a sum of positive squares in 4 ways, for example, as 200845584 + 404496 = 14172^2 + 636^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201250087) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20370 + ... + 28590.

Almost surely, 2201250080 is an apocalyptic number.

201250080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201250080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (363626172).

201250080 is an abundant number, since it is smaller than the sum of its proper divisors (526002264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201250080 is a wasteful number, since it uses less digits than its factorization.

201250080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8259 (or 8248 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 201250080 is about 14186.2637787403. The cubic root of 201250080 is about 586.0194365842.

The spelling of 201250080 in words is "two hundred one million, two hundred fifty thousand, eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 17 18 20 24 30 32 34 36 40 45 48 51 60 68 72 80 85 90 96 102 120 136 144 153 160 170 180 204 240 255 272 288 306 340 360 408 480 510 544 612 680 720 765 816 1020 1224 1360 1440 1530 1632 2040 2448 2720 3060 4080 4896 6120 8160 8221 12240 16442 24480 24663 32884 41105 49326 65768 73989 82210 98652 123315 131536 139757 147978 164420 197304 246630 263072 279514 295956 328840 369945 394608 419271 493260 559028 591912 657680 698785 739890 789216 838542 986520 1118056 1183824 1257813 1315360 1397570 1479780 1677084 1973040 2096355 2236112 2367648 2515626 2795140 2959560 3354168 3946080 4192710 4472224 5031252 5590280 5919120 6289065 6708336 8385420 10062504 11180560 11838240 12578130 13416672 16770840 20125008 22361120 25156260 33541680 40250016 50312520 67083360 100625040 201250080