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2872129268 = 221390751631
BaseRepresentation
bin1010101100110001…
…0011011011110100
321102011102021200002
42223030103123310
521340231114033
61152555410432
7131113460501
oct25314233364
97364367602
102872129268
111244273258
12681a53a18
1336a062c98
141d363c4a8
1511c2363e8
hexab3136f4

2872129268 has 12 divisors (see below), whose sum is σ = 5026684992. Its totient is φ = 1435933560.

The previous prime is 2872129259. The next prime is 2872129291. The reversal of 2872129268 is 8629212782.

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 3 ways as a sum of consecutive naturals, for example, 29813 + ... + 81443.

It is an arithmetic number, because the mean of its divisors is an integer number (418890416).

Almost surely, 22872129268 is an apocalyptic number.

It is an amenable number.

2872129268 is a deficient number, since it is larger than the sum of its proper divisors (2154555724).

2872129268 is a wasteful number, since it uses less digits than its factorization.

2872129268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65542 (or 65540 counting only the distinct ones).

The product of its digits is 387072, while the sum is 47.

The square root of 2872129268 is about 53592.2500740546. The cubic root of 2872129268 is about 1421.4600581149.

The spelling of 2872129268 in words is "two billion, eight hundred seventy-two million, one hundred twenty-nine thousand, two hundred sixty-eight".

Divisors: 1 2 4 13907 27814 51631 55628 103262 206524 718032317 1436064634 2872129268