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3952163257 = 72791020967
BaseRepresentation
bin1110101110010001…
…0011100110111001
3101012102200200202221
43223210103212321
531043223211012
61452100324041
7166636555600
oct35344234671
911172620687
103952163257
111748990829
129236a3621
134aca42b53
14296c60a37
15181e76507
hexeb9139b9

3952163257 has 12 divisors (see below), whose sum is σ = 4655614080. Its totient is φ = 3344684616.

The previous prime is 3952163249. The next prime is 3952163263. The reversal of 3952163257 is 7523612593.

It is not a de Polignac number, because 3952163257 - 23 = 3952163249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3952163207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 506613 + ... + 514354.

It is an arithmetic number, because the mean of its divisors is an integer number (387967840).

Almost surely, 23952163257 is an apocalyptic number.

It is an amenable number.

3952163257 is a deficient number, since it is larger than the sum of its proper divisors (703450823).

3952163257 is a wasteful number, since it uses less digits than its factorization.

3952163257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021060 (or 1021053 counting only the distinct ones).

The product of its digits is 340200, while the sum is 43.

The square root of 3952163257 is about 62866.2330428665. The cubic root of 3952163257 is about 1581.0476490647.

The spelling of 3952163257 in words is "three billion, nine hundred fifty-two million, one hundred sixty-three thousand, two hundred fifty-seven".

Divisors: 1 7 49 79 553 3871 1020967 7146769 50027383 80656393 564594751 3952163257