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2660953172 = 2213919125057
BaseRepresentation
bin1001111010011010…
…1110110001010100
320212110001102112012
42132212232301110
520422201000142
61120013243352
7122640504653
oct23646566124
96773042465
102660953172
111146047559
12623193558
13335394a07
141b358b19a
15108920882
hex9e9aec54

2660953172 has 24 divisors (see below), whose sum is σ = 4714913280. Its totient is φ = 1313936640.

The previous prime is 2660953121. The next prime is 2660953187. The reversal of 2660953172 is 2713590662.

It is a super-3 number, since 3×26609531723 (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 93668 + ... + 118724.

It is an arithmetic number, because the mean of its divisors is an integer number (196454720).

Almost surely, 22660953172 is an apocalyptic number.

It is an amenable number.

2660953172 is a deficient number, since it is larger than the sum of its proper divisors (2053960108).

2660953172 is a wasteful number, since it uses less digits than its factorization.

2660953172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25391 (or 25389 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 2660953172 is about 51584.4276114410. The cubic root of 2660953172 is about 1385.7314615567.

The spelling of 2660953172 in words is "two billion, six hundred sixty million, nine hundred fifty-three thousand, one hundred seventy-two".

Divisors: 1 2 4 139 191 278 382 556 764 25057 26549 50114 53098 100228 106196 3482923 4785887 6965846 9571774 13931692 19143548 665238293 1330476586 2660953172