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253628032 = 2771716651
BaseRepresentation
bin11110001111000…
…00111010000000
3122200020122020211
433013200322000
51004412044112
641100043504
76166542220
oct1707407200
9580218224
10253628032
11120191549
1270b33594
1340712b78
1425982080
15173ee0a7
hexf1e0e80

253628032 has 64 divisors (see below), whose sum is σ = 611461440. Its totient is φ = 102297600.

The previous prime is 253628021. The next prime is 253628033. The reversal of 253628032 is 230826352.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 253627985 and 253628003.

It is not an unprimeable number, because it can be changed into a prime (253628033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6907 + ... + 23557.

It is an arithmetic number, because the mean of its divisors is an integer number (9554085).

Almost surely, 2253628032 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 253628032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (305730720).

253628032 is an abundant number, since it is smaller than the sum of its proper divisors (357833408).

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

253628032 is a wasteful number, since it uses less digits than its factorization.

253628032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16689 (or 16677 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 253628032 is about 15925.7035009446. The cubic root of 253628032 is about 632.9932573756.

The spelling of 253628032 in words is "two hundred fifty-three million, six hundred twenty-eight thousand, thirty-two".

Divisors: 1 2 4 7 8 14 16 17 28 32 34 56 64 68 112 119 128 136 224 238 272 448 476 544 896 952 1088 1904 2176 3808 7616 15232 16651 33302 66604 116557 133208 233114 266416 283067 466228 532832 566134 932456 1065664 1132268 1864912 1981469 2131328 2264536 3729824 3962938 4529072 7459648 7925876 9058144 14919296 15851752 18116288 31703504 36232576 63407008 126814016 253628032