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252195040 = 2556412459
BaseRepresentation
bin11110000100000…
…11000011100000
3122120112211120001
433002003003200
51004030220130
641005225344
76151423336
oct1702030340
9576484501
10252195040
1111a3a2959
1270562254
1340330846
14256cbb56
15172196ca
hexf0830e0

252195040 has 48 divisors (see below), whose sum is σ = 596982960. Its totient is φ = 100679680.

The previous prime is 252195019. The next prime is 252195061. The reversal of 252195040 is 40591252.

It is an interprime number because it is at equal distance from previous prime (252195019) and next prime (252195061).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101331 + ... + 103789.

It is an arithmetic number, because the mean of its divisors is an integer number (12437145).

Almost surely, 2252195040 is an apocalyptic number.

252195040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252195040 is an abundant number, since it is smaller than the sum of its proper divisors (344787920).

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

252195040 is a wasteful number, since it uses less digits than its factorization.

252195040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3115 (or 3107 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 252195040 is about 15880.6498607582. The cubic root of 252195040 is about 631.7988731366.

The spelling of 252195040 in words is "two hundred fifty-two million, one hundred ninety-five thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 641 1282 2459 2564 3205 4918 5128 6410 9836 10256 12295 12820 19672 20512 24590 25640 39344 49180 51280 78688 98360 102560 196720 393440 1576219 3152438 6304876 7881095 12609752 15762190 25219504 31524380 50439008 63048760 126097520 252195040