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70925717408 = 257131731113409
BaseRepresentation
bin100001000001110000…
…0001000111110100000
320210001221020202102112
41002003200020332200
52130223440424113
652325520134452
75060414436140
oct1020340107640
9223057222375
1070925717408
112809679a287
12118b4a67428
1368c4176930
14360b948920
151ca1a1c5a8
hex1083808fa0

70925717408 has 384 divisors, whose sum is σ = 189963325440. Its totient is φ = 25268060160.

The previous prime is 70925717407. The next prime is 70925717431. The reversal of 70925717408 is 80471752907.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (70925717407) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 173412308 + ... + 173412716.

It is an arithmetic number, because the mean of its divisors is an integer number (494696160).

Almost surely, 270925717408 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 70925717408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94981662720).

70925717408 is an abundant number, since it is smaller than the sum of its proper divisors (119037608032).

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

70925717408 is a wasteful number, since it uses less digits than its factorization.

70925717408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600 (or 592 counting only the distinct ones).

The product of its (nonzero) digits is 987840, while the sum is 50.

The spelling of 70925717408 in words is "seventy billion, nine hundred twenty-five million, seven hundred seventeen thousand, four hundred eight".