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2872164460 = 2251113055293
BaseRepresentation
bin1010101100110001…
…1100000001101100
321102011111001221111
42223030130001230
521340233230320
61153000241404
7131113665214
oct25314340154
97364431844
102872164460
111244297740
12681a70264
1336a075cc9
141d364b244
1511c241a5a
hexab31c06c

2872164460 has 24 divisors (see below), whose sum is σ = 6579868176. Its totient is φ = 1044423360.

The previous prime is 2872164439. The next prime is 2872164461. The reversal of 2872164460 is 644612782.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2872164461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6527427 + ... + 6527866.

It is an arithmetic number, because the mean of its divisors is an integer number (274161174).

Almost surely, 22872164460 is an apocalyptic number.

2872164460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2872164460 is an abundant number, since it is smaller than the sum of its proper divisors (3707703716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2872164460 is a wasteful number, since it uses less digits than its factorization.

2872164460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13055313 (or 13055311 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 2872164460 is about 53592.5784041037. The cubic root of 2872164460 is about 1421.4658637749.

The spelling of 2872164460 in words is "two billion, eight hundred seventy-two million, one hundred sixty-four thousand, four hundred sixty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 13055293 26110586 52221172 65276465 130552930 143608223 261105860 287216446 574432892 718041115 1436082230 2872164460