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2872310440 = 23579908959
BaseRepresentation
bin1010101100110011…
…1111101010101000
321102011202111012011
42223030333222220
521340302413230
61153003325304
7131115143626
oct25314775250
97364674164
102872310440
11124438738a
12681b20834
1336a0c759c
141d3688516
1511c26ee2a
hexab33faa8

2872310440 has 32 divisors (see below), whose sum is σ = 6544512000. Its totient is φ = 1134379584.

The previous prime is 2872310411. The next prime is 2872310443. The reversal of 2872310440 is 440132782.

It is not an unprimeable number, because it can be changed into a prime (2872310443) 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, 451320 + ... + 457639.

It is an arithmetic number, because the mean of its divisors is an integer number (204516000).

Almost surely, 22872310440 is an apocalyptic number.

2872310440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2872310440 is an abundant number, since it is smaller than the sum of its proper divisors (3672201560).

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

2872310440 is a wasteful number, since it uses less digits than its factorization.

2872310440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909049 (or 909045 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 2872310440 is about 53593.9403291081. The cubic root of 2872310440 is about 1421.4899457375.

The spelling of 2872310440 in words is "two billion, eight hundred seventy-two million, three hundred ten thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 79 158 316 395 632 790 1580 3160 908959 1817918 3635836 4544795 7271672 9089590 18179180 36358360 71807761 143615522 287231044 359038805 574462088 718077610 1436155220 2872310440