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252418668970 = 25132298478961
BaseRepresentation
bin1110101100010101010…
…0110011100110101010
3220010112111020222012111
43223011110303212222
513113423134401340
6311543132032534
724144112166536
oct3530524634652
9803474228174
10252418668970
1198060838026
1240b0660274a
131aa591b3170
14c307b30bc6
15687532baea
hex3ac55339aa

252418668970 has 32 divisors (see below), whose sum is σ = 491440637520. Its totient is φ = 92793738240.

The previous prime is 252418668947. The next prime is 252418668977. The reversal of 252418668970 is 79866814252.

It can be written as a sum of positive squares in 8 ways, for example, as 168363323041 + 84055345929 = 410321^2 + 289923^2 .

It is not an unprimeable number, because it can be changed into a prime (252418668977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4209711 + ... + 4269250.

Almost surely, 2252418668970 is an apocalyptic number.

252418668970 is a deficient number, since it is larger than the sum of its proper divisors (239021968550).

252418668970 is a wasteful number, since it uses less digits than its factorization.

252418668970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8479210.

The product of its (nonzero) digits is 11612160, while the sum is 58.

The spelling of 252418668970 in words is "two hundred fifty-two billion, four hundred eighteen million, six hundred sixty-eight thousand, nine hundred seventy".

Divisors: 1 2 5 10 13 26 65 130 229 458 1145 2290 2977 5954 14885 29770 8478961 16957922 42394805 84789610 110226493 220452986 551132465 1102264930 1941682069 3883364138 9708410345 19416820690 25241866897 50483733794 126209334485 252418668970