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42872552709 = 3713914687411
BaseRepresentation
bin100111111011011001…
…110011110100000101
311002122212021100000120
4213323121303310011
51200300333141314
631410111332153
73045264454020
oct477331636405
9132585240016
1042872552709
1117200490448
128385b21059
1340732331ac
142109cba1b7
1511adca38a9
hex9fb673d05

42872552709 has 16 divisors (see below), whose sum is σ = 65799605760. Its totient is φ = 24322350960.

The previous prime is 42872552693. The next prime is 42872552719. The reversal of 42872552709 is 90725527824.

It is not a de Polignac number, because 42872552709 - 24 = 42872552693 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42872552719) 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, 7340787 + ... + 7346624.

It is an arithmetic number, because the mean of its divisors is an integer number (4112475360).

Almost surely, 242872552709 is an apocalyptic number.

It is an amenable number.

42872552709 is a deficient number, since it is larger than the sum of its proper divisors (22927053051).

42872552709 is a wasteful number, since it uses less digits than its factorization.

42872552709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14687560.

The product of its (nonzero) digits is 2822400, while the sum is 51.

The spelling of 42872552709 in words is "forty-two billion, eight hundred seventy-two million, five hundred fifty-two thousand, seven hundred nine".

Divisors: 1 3 7 21 139 417 973 2919 14687411 44062233 102811877 308435631 2041550129 6124650387 14290850903 42872552709