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3656132145 = 32581247381
BaseRepresentation
bin1101100111101100…
…0010011000110001
3100102210122202102200
43121323002120301
524441432212040
61402443333413
7156413416251
oct33173023061
910383582380
103656132145
111606878216
12860521269
13463604703
14269801961
15165e9d630
hexd9ec2631

3656132145 has 12 divisors (see below), whose sum is σ = 6337295796. Its totient is φ = 1949937120.

The previous prime is 3656132131. The next prime is 3656132153. The reversal of 3656132145 is 5412316563.

3656132145 is a `hidden beast` number, since 36 + 5 + 613 + 2 + 1 + 4 + 5 = 666.

3656132145 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1681574049 + 1974558096 = 41007^2 + 44436^2 .

It is not a de Polignac number, because 3656132145 - 210 = 3656131121 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40623646 + ... + 40623735.

It is an arithmetic number, because the mean of its divisors is an integer number (528107983).

Almost surely, 23656132145 is an apocalyptic number.

It is an amenable number.

3656132145 is a deficient number, since it is larger than the sum of its proper divisors (2681163651).

3656132145 is a wasteful number, since it uses less digits than its factorization.

3656132145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81247392 (or 81247389 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 3656132145 is about 60465.9585634760. The cubic root of 3656132145 is about 1540.5434840343.

The spelling of 3656132145 in words is "three billion, six hundred fifty-six million, one hundred thirty-two thousand, one hundred forty-five".

Divisors: 1 3 5 9 15 45 81247381 243742143 406236905 731226429 1218710715 3656132145