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253255552 = 2711434789
BaseRepresentation
bin11110001100001…
…01111110000000
3122122112201022021
433012011332000
51004313134202
641044051224
76163431244
oct1706057600
9578481267
10253255552
1111aa57710
1270993b14
1340612474
14258c6424
1517378a37
hexf185f80

253255552 has 128 divisors (see below), whose sum is σ = 581644800. Its totient is φ = 108810240.

The previous prime is 253255549. The next prime is 253255567. The reversal of 253255552 is 255552352.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2845524 + ... + 2845612.

It is an arithmetic number, because the mean of its divisors is an integer number (4544100).

Almost surely, 2253255552 is an apocalyptic number.

253255552 is a gapful number since it is divisible by the number (22) 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 253255552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290822400).

253255552 is an abundant number, since it is smaller than the sum of its proper divisors (328389248).

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

253255552 is a wasteful number, since it uses less digits than its factorization.

253255552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204 (or 192 counting only the distinct ones).

The product of its digits is 75000, while the sum is 34.

The square root of 253255552 is about 15914.0049013440. The cubic root of 253255552 is about 632.6832327010.

The spelling of 253255552 in words is "two hundred fifty-three million, two hundred fifty-five thousand, five hundred fifty-two".

Divisors: 1 2 4 8 11 16 22 32 43 44 47 64 86 88 89 94 128 172 176 178 188 344 352 356 376 473 517 688 704 712 752 946 979 1034 1376 1408 1424 1504 1892 1958 2021 2068 2752 2848 3008 3784 3827 3916 4042 4136 4183 5504 5696 6016 7568 7654 7832 8084 8272 8366 11392 15136 15308 15664 16168 16544 16732 22231 30272 30616 31328 32336 33088 33464 42097 44462 46013 60544 61232 62656 64672 66176 66928 84194 88924 92026 122464 125312 129344 133856 168388 177848 179869 184052 244928 258688 267712 336776 355696 359738 368104 489856 535424 673552 711392 719476 736208 1347104 1422784 1438952 1472416 1978559 2694208 2845568 2877904 2944832 3957118 5388416 5755808 5889664 7914236 11511616 15828472 23023232 31656944 63313888 126627776 253255552