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70169894712 = 233212719339761
BaseRepresentation
bin100000101011001110…
…0111001111100111000
320201010021000222121100
41001112130321330320
52122201443112322
652122520211400
75032606156341
oct1012634717470
9221107028540
1070169894712
1127839092525
1211723909b60
1368036c0a78
1435793dd0c8
151c5a4bedac
hex1056739f38

70169894712 has 96 divisors (see below), whose sum is σ = 192537146880. Its totient is φ = 23084974080.

The previous prime is 70169894651. The next prime is 70169894737. The reversal of 70169894712 is 21749896107.

70169894712 is a `hidden beast` number, since 7 + 0 + 169 + 8 + 9 + 471 + 2 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

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 23 ways as a sum of consecutive naturals, for example, 1744912 + ... + 1784672.

It is an arithmetic number, because the mean of its divisors is an integer number (2005595280).

Almost surely, 270169894712 is an apocalyptic number.

70169894712 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70169894712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96268573440).

70169894712 is an abundant number, since it is smaller than the sum of its proper divisors (122367252168).

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

70169894712 is a wasteful number, since it uses less digits than its factorization.

70169894712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40093 (or 40086 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 54.

The spelling of 70169894712 in words is "seventy billion, one hundred sixty-nine million, eight hundred ninety-four thousand, seven hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 127 193 254 381 386 508 579 762 772 1016 1143 1158 1524 1544 1737 2286 2316 3048 3474 4572 4632 6948 9144 13896 24511 39761 49022 73533 79522 98044 119283 147066 159044 196088 220599 238566 294132 318088 357849 441198 477132 588264 715698 882396 954264 1431396 1764792 2862792 5049647 7673873 10099294 15148941 15347746 20198588 23021619 30297882 30695492 40397176 45446823 46043238 60595764 61390984 69064857 90893646 92086476 121191528 138129714 181787292 184172952 276259428 363574584 552518856 974581871 1949163742 2923745613 3898327484 5847491226 7796654968 8771236839 11694982452 17542473678 23389964904 35084947356 70169894712