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52951000921 = 71337732111021
BaseRepresentation
bin110001010100001000…
…000010011101011001
312001200020122112212021
4301110020002131121
51331420424012141
640154135414441
73553114036660
oct612410023531
9161606575767
1052951000921
1120502506795
12a319224421
134cbb259610
1427c461ddd7
15159d9aa6d1
hexc54202759

52951000921 has 64 divisors (see below), whose sum is σ = 68237026816. Its totient is φ = 39974860800.

The previous prime is 52951000909. The next prime is 52951000931. The reversal of 52951000921 is 12900015925.

It is not a de Polignac number, because 52951000921 - 29 = 52951000409 is a prime.

It is a deceptive number, since it divides R52951000920.

It is not an unprimeable number, because it can be changed into a prime (52951000901) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 51861391 + ... + 51862411.

It is an arithmetic number, because the mean of its divisors is an integer number (1066203544).

Almost surely, 252951000921 is an apocalyptic number.

It is an amenable number.

52951000921 is a deficient number, since it is larger than the sum of its proper divisors (15286025895).

52951000921 is a wasteful number, since it uses less digits than its factorization.

52951000921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362.

The product of its (nonzero) digits is 8100, while the sum is 34.

The spelling of 52951000921 in words is "fifty-two billion, nine hundred fifty-one million, nine hundred twenty-one", and thus it is an aban number.

Divisors: 1 7 13 37 73 91 211 259 481 511 949 1021 1477 2701 2743 3367 6643 7147 7807 13273 15403 18907 19201 35113 37777 54649 74533 92911 101491 107821 200239 215431 245791 264439 491101 521731 569911 710437 968929 1401673 1508017 2757721 2800603 3437707 3989377 6782503 7408843 7970947 15726463 19304047 19604221 35850373 51861901 55796629 103622311 110085241 204444019 250952611 581879131 725356177 1431108133 4073153917 7564428703 52951000921