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70123878462 = 231110310315369
BaseRepresentation
bin100000101001110110…
…1010111100000111110
320201000001110010011210
41001103231113200332
52122103203102322
652114154025250
75031510063231
oct1012355274076
9221001403153
1070123878462
1127815112870
1211710418226
1367c6ccba11
143573261418
151c5643070c
hex1053b5783e

70123878462 has 32 divisors (see below), whose sum is σ = 154482981120. Its totient is φ = 21043350720.

The previous prime is 70123878439. The next prime is 70123878481. The reversal of 70123878462 is 26487832107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5150887 + ... + 5164482.

It is an arithmetic number, because the mean of its divisors is an integer number (4827593160).

Almost surely, 270123878462 is an apocalyptic number.

70123878462 is an abundant number, since it is smaller than the sum of its proper divisors (84359102658).

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

70123878462 is a wasteful number, since it uses less digits than its factorization.

70123878462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10315488.

The product of its (nonzero) digits is 903168, while the sum is 48.

The spelling of 70123878462 in words is "seventy billion, one hundred twenty-three million, eight hundred seventy-eight thousand, four hundred sixty-two".

Divisors: 1 2 3 6 11 22 33 66 103 206 309 618 1133 2266 3399 6798 10315369 20630738 30946107 61892214 113469059 226938118 340407177 680814354 1062483007 2124966014 3187449021 6374898042 11687313077 23374626154 35061939231 70123878462