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3149595081 = 32349955009
BaseRepresentation
bin1011101110111011…
…0000000111001001
322010111112000012200
42323232300013021
522422244020311
61240310430413
7141023054643
oct27356600711
98114460180
103149595081
111376956446
1273a962409
133b26a1039
1421c427893
15136793556
hexbbbb01c9

3149595081 has 6 divisors (see below), whose sum is σ = 4549415130. Its totient is φ = 2099730048.

The previous prime is 3149595061. The next prime is 3149595109. The reversal of 3149595081 is 1805959413.

3149595081 is a `hidden beast` number, since 31 + 495 + 9 + 50 + 81 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1858989456 + 1290605625 = 43116^2 + 35925^2 .

It is not a de Polignac number, because 3149595081 - 210 = 3149594057 is a prime.

It is a super-2 number, since 2×31495950812 = 19839898348518793122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3149595011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 174977496 + ... + 174977513.

It is an arithmetic number, because the mean of its divisors is an integer number (758235855).

Almost surely, 23149595081 is an apocalyptic number.

It is an amenable number.

3149595081 is a deficient number, since it is larger than the sum of its proper divisors (1399820049).

3149595081 is a wasteful number, since it uses less digits than its factorization.

3149595081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349955015 (or 349955012 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 45.

The square root of 3149595081 is about 56121.2533805153. The cubic root of 3149595081 is about 1465.8343945854.

The spelling of 3149595081 in words is "three billion, one hundred forty-nine million, five hundred ninety-five thousand, eighty-one".

Divisors: 1 3 9 349955009 1049865027 3149595081