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70135312400 = 2452175338281
BaseRepresentation
bin100000101010001100…
…0111111000000010000
320201000211222000120222
41001110120333000100
52122114114444100
652115243052212
75032006214306
oct1012430770020
9221024860528
1070135312400
11278206122aa
1211714211068
1367c94a316a
14357499a276
151c5743d485
hex105463f010

70135312400 has 30 divisors (see below), whose sum is σ = 168500089002. Its totient is φ = 28054124800.

The previous prime is 70135312399. The next prime is 70135312409. The reversal of 70135312400 is 421353107.

It can be written as a sum of positive squares in 3 ways, for example, as 23153882896 + 46981429504 = 152164^2 + 216752^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 70135312400.

It is not an unprimeable number, because it can be changed into a prime (70135312409) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 87668741 + ... + 87669540.

Almost surely, 270135312400 is an apocalyptic number.

It is an amenable number.

70135312400 is an abundant number, since it is smaller than the sum of its proper divisors (98364776602).

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

70135312400 is a wasteful number, since it uses less digits than its factorization.

70135312400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175338299 (or 175338288 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

Adding to 70135312400 its reverse (421353107), we get a palindrome (70556665507).

The spelling of 70135312400 in words is "seventy billion, one hundred thirty-five million, three hundred twelve thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 175338281 350676562 701353124 876691405 1402706248 1753382810 2805412496 3506765620 4383457025 7013531240 8766914050 14027062480 17533828100 35067656200 70135312400