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12952808961 = 323976313067
BaseRepresentation
bin11000001000000110…
…00010111000000001
31020102200222212112020
430010003002320001
5203011404341321
65541143352053
7635661026301
oct140403027001
936380885466
1012952808961
1155475830a4
122615a52629
1312b568b001
148ac3a3601
1550c22e4c6
hex3040c2e01

12952808961 has 32 divisors (see below), whose sum is σ = 18241886208. Its totient is φ = 8158993920.

The previous prime is 12952808941. The next prime is 12952808971. The reversal of 12952808961 is 16980825921.

It is not a de Polignac number, because 12952808961 - 210 = 12952807937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12952808941) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4221750 + ... + 4224816.

It is an arithmetic number, because the mean of its divisors is an integer number (570058944).

Almost surely, 212952808961 is an apocalyptic number.

It is an amenable number.

12952808961 is a deficient number, since it is larger than the sum of its proper divisors (5289077247).

12952808961 is a wasteful number, since it uses less digits than its factorization.

12952808961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3821.

The product of its (nonzero) digits is 622080, while the sum is 51.

The spelling of 12952808961 in words is "twelve billion, nine hundred fifty-two million, eight hundred eight thousand, nine hundred sixty-one".

Divisors: 1 3 23 69 97 291 631 1893 2231 3067 6693 9201 14513 43539 61207 70541 183621 211623 297499 892497 1407761 1935277 4223283 5805831 6842477 20527431 44511371 133534113 187721869 563165607 4317602987 12952808961