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225001968 = 24331891699
BaseRepresentation
bin11010110100101…
…00000111110000
3120200101021200020
431122110013300
5430100030333
634154323440
75401325262
oct1532240760
9520337606
10225001968
1110600a344
1263429580
13377cc379
1421c4db32
1514b473b3
hexd6941f0

225001968 has 80 divisors (see below), whose sum is σ = 607104000. Its totient is φ = 71723520.

The previous prime is 225001957. The next prime is 225001991. The reversal of 225001968 is 869100522.

It is a super-3 number, since 3×2250019683 (a number of 26 digits) contains 333 as substring.

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, 131583 + ... + 133281.

It is an arithmetic number, because the mean of its divisors is an integer number (7588800).

Almost surely, 2225001968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225001968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303552000).

225001968 is an abundant number, since it is smaller than the sum of its proper divisors (382102032).

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

225001968 is a wasteful number, since it uses less digits than its factorization.

225001968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1830 (or 1824 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 225001968 is about 15000.0655998566. The cubic root of 225001968 is about 608.2219728520.

The spelling of 225001968 in words is "two hundred twenty-five million, one thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 31 48 62 89 93 124 178 186 248 267 356 372 496 534 712 744 1068 1424 1488 1699 2136 2759 3398 4272 5097 5518 6796 8277 10194 11036 13592 16554 20388 22072 27184 33108 40776 44144 52669 66216 81552 105338 132432 151211 158007 210676 302422 316014 421352 453633 604844 632028 842704 907266 1209688 1264056 1814532 2419376 2528112 3629064 4687541 7258128 9375082 14062623 18750164 28125246 37500328 56250492 75000656 112500984 225001968