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252292488 = 23371979039
BaseRepresentation
bin11110000100110…
…10110110001000
3122120201210020020
433002122312020
51004041324423
641011300440
76152310420
oct1702326610
9576653206
10252292488
1111a45a098
12705aa720
1340365cc6
1425715480
15172384e3
hexf09ad88

252292488 has 64 divisors (see below), whose sum is σ = 758784000. Its totient is φ = 68288832.

The previous prime is 252292459. The next prime is 252292493. The reversal of 252292488 is 884292252.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 36328 + ... + 42711.

It is an arithmetic number, because the mean of its divisors is an integer number (11856000).

Almost surely, 2252292488 is an apocalyptic number.

252292488 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

252292488 is an abundant number, since it is smaller than the sum of its proper divisors (506491512).

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

252292488 is a wasteful number, since it uses less digits than its factorization.

252292488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79074 (or 79070 counting only the distinct ones).

The product of its digits is 184320, while the sum is 42.

The square root of 252292488 is about 15883.7177008407. The cubic root of 252292488 is about 631.8802382160.

The spelling of 252292488 in words is "two hundred fifty-two million, two hundred ninety-two thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 19 21 24 28 38 42 56 57 76 84 114 133 152 168 228 266 399 456 532 798 1064 1596 3192 79039 158078 237117 316156 474234 553273 632312 948468 1106546 1501741 1659819 1896936 2213092 3003482 3319638 4426184 4505223 6006964 6639276 9010446 10512187 12013928 13278552 18020892 21024374 31536561 36041784 42048748 63073122 84097496 126146244 252292488