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2152109707 = 116110331139
BaseRepresentation
bin1000000001000110…
…1001011010001011
312112222120111111221
42000101221122023
513401420002312
6553315102511
7104221426216
oct20021513213
95488514457
102152109707
11a0489a970
125008a1a37
13283b345c7
14165b7277d
15c8e0c207
hex8046968b

2152109707 has 16 divisors (see below), whose sum is σ = 2409488640. Its totient is φ = 1905645600.

The previous prime is 2152109681. The next prime is 2152109753. The reversal of 2152109707 is 7079012512.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2152109707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2152109767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53544 + ... + 84682.

It is an arithmetic number, because the mean of its divisors is an integer number (150593040).

Almost surely, 22152109707 is an apocalyptic number.

2152109707 is a deficient number, since it is larger than the sum of its proper divisors (257378933).

2152109707 is a wasteful number, since it uses less digits than its factorization.

2152109707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31314.

The product of its (nonzero) digits is 8820, while the sum is 34.

The square root of 2152109707 is about 46390.8364550587. The cubic root of 2152109707 is about 1291.0849008863.

The spelling of 2152109707 in words is "two billion, one hundred fifty-two million, one hundred nine thousand, seven hundred seven".

Divisors: 1 11 61 103 671 1133 6283 31139 69113 342529 1899479 3207317 20894269 35280487 195646337 2152109707