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70667073768 = 23319431359563
BaseRepresentation
bin100000111010000010…
…1011111100011101000
320202101220120022001110
41001310011133203220
52124211232330033
652244120350320
75051124134064
oct1016405374350
9222356508043
1070667073768
1127a737a2505
12118423153a0
1368826c8b65
1435c545caa4
151c88e7c363
hex107415f8e8

70667073768 has 64 divisors (see below), whose sum is σ = 186397977600. Its totient is φ = 22264079040.

The previous prime is 70667073739. The next prime is 70667073769. The reversal of 70667073768 is 86737076607.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (70667073769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16755 + ... + 376317.

It is an arithmetic number, because the mean of its divisors is an integer number (2912468400).

Almost surely, 270667073768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70667073768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93198988800).

70667073768 is an abundant number, since it is smaller than the sum of its proper divisors (115730903832).

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

70667073768 is a wasteful number, since it uses less digits than its factorization.

70667073768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360022 (or 360018 counting only the distinct ones).

The product of its (nonzero) digits is 12446784, while the sum is 57.

The spelling of 70667073768 in words is "seventy billion, six hundred sixty-seven million, seventy-three thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 19 24 38 57 76 114 152 228 431 456 862 1293 1724 2586 3448 5172 8189 10344 16378 24567 32756 49134 65512 98268 196536 359563 719126 1078689 1438252 2157378 2876504 4314756 6831697 8629512 13663394 20495091 27326788 40990182 54653576 81980364 154971653 163960728 309943306 464914959 619886612 929829918 1239773224 1859659836 2944461407 3719319672 5888922814 8833384221 11777845628 17666768442 23555691256 35333536884 70667073768