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70064909352 = 2332171913721991
BaseRepresentation
bin100000101000000110…
…0011010110000101000
320200211221111011202200
41001100030122300220
52121443104044402
652104250100200
75030162621514
oct1012014326050
9220757434680
1070064909352
11277948a6469
12116b471a660
1367b7a23059
1435694b1144
151c5118321c
hex105031ac28

70064909352 has 192 divisors, whose sum is σ = 213049699200. Its totient is φ = 20671303680.

The previous prime is 70064909309. The next prime is 70064909357. The reversal of 70064909352 is 25390946007.

It is a happy number.

70064909352 is a `hidden beast` number, since 70 + 0 + 6 + 490 + 93 + 5 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 70064909298 and 70064909307.

It is not an unprimeable number, because it can be changed into a prime (70064909357) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3175077 + ... + 3197067.

It is an arithmetic number, because the mean of its divisors is an integer number (1109633850).

Almost surely, 270064909352 is an apocalyptic number.

70064909352 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 70064909352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106524849600).

70064909352 is an abundant number, since it is smaller than the sum of its proper divisors (142984789848).

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

70064909352 is a wasteful number, since it uses less digits than its factorization.

70064909352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22176 (or 22169 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The spelling of 70064909352 in words is "seventy billion, sixty-four million, nine hundred nine thousand, three hundred fifty-two".