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3081929616 = 243221402289
BaseRepresentation
bin1011011110110010…
…1000001110010000
321221210012020122100
42313230220032100
522302433221431
61225452240400
7136241653353
oct26754501620
97853166570
103081929616
11134173a377
12720170100
133a166bcbc
1421345229a
151308794e6
hexb7b28390

3081929616 has 30 divisors (see below), whose sum is σ = 8625122870. Its totient is φ = 1027309824.

The previous prime is 3081929611. The next prime is 3081929651. The reversal of 3081929616 is 6169291803.

It is a happy number.

3081929616 is a `hidden beast` number, since 3 + 0 + 8 + 1 + 9 + 29 + 616 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3080250000 + 1679616 = 55500^2 + 1296^2 .

It is not an unprimeable number, because it can be changed into a prime (3081929611) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10701001 + ... + 10701288.

Almost surely, 23081929616 is an apocalyptic number.

3081929616 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3081929616 is an abundant number, since it is smaller than the sum of its proper divisors (5543193254).

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

3081929616 is a wasteful number, since it uses less digits than its factorization.

3081929616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21402303 (or 21402294 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 3081929616 is about 55515.1296134666. The cubic root of 3081929616 is about 1455.2610492746.

The spelling of 3081929616 in words is "three billion, eighty-one million, nine hundred twenty-nine thousand, six hundred sixteen".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 21402289 42804578 64206867 85609156 128413734 171218312 192620601 256827468 342436624 385241202 513654936 770482404 1027309872 1540964808 3081929616