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70750315845 = 32511178407643
BaseRepresentation
bin100000111100100001…
…1000010010101000101
320202121201012102201100
41001321003002111011
52124344040101340
652300252450313
75053154522256
oct1017103022505
9222551172640
1070750315845
1128006788510
1211866179999
136896a22b21
1435d252ab2d
151c91421830
hex10790c2545

70750315845 has 48 divisors (see below), whose sum is σ = 141651986112. Its totient is φ = 32285345280.

The previous prime is 70750315837. The next prime is 70750315859. The reversal of 70750315845 is 54851305707.

It is a happy number.

It is not a de Polignac number, because 70750315845 - 23 = 70750315837 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 70750315845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4195407 + ... + 4212236.

It is an arithmetic number, because the mean of its divisors is an integer number (2951083044).

Almost surely, 270750315845 is an apocalyptic number.

It is an amenable number.

70750315845 is an abundant number, since it is smaller than the sum of its proper divisors (70901670267).

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

70750315845 is a wasteful number, since it uses less digits than its factorization.

70750315845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8407682 (or 8407679 counting only the distinct ones).

The product of its (nonzero) digits is 588000, while the sum is 45.

The spelling of 70750315845 in words is "seventy billion, seven hundred fifty million, three hundred fifteen thousand, eight hundred forty-five".

Divisors: 1 3 5 9 11 15 17 33 45 51 55 85 99 153 165 187 255 495 561 765 935 1683 2805 8415 8407643 25222929 42038215 75668787 92484073 126114645 142929931 277452219 378343935 428789793 462420365 714649655 832356657 1286369379 1387261095 1572229241 2143948965 4161783285 4716687723 6431846895 7861146205 14150063169 23583438615 70750315845