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12052312503 = 37111719161531
BaseRepresentation
bin10110011100101111…
…11011000110110111
31011002221112220121120
423032113323012313
5144140343000003
65311534515023
7604444652220
oct131627730667
934087486546
1012052312503
115125241850
122404365a73
1311a0c4c67a
14824958247
154a8155853
hex2ce5fb1b7

12052312503 has 64 divisors (see below), whose sum is σ = 22330183680. Its totient is φ = 5582476800.

The previous prime is 12052312477. The next prime is 12052312553. The reversal of 12052312503 is 30521325021.

It is a happy number.

It is not a de Polignac number, because 12052312503 - 25 = 12052312471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12052312553) 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, 6153 + ... + 155378.

It is an arithmetic number, because the mean of its divisors is an integer number (348909120).

Almost surely, 212052312503 is an apocalyptic number.

12052312503 is a deficient number, since it is larger than the sum of its proper divisors (10277871177).

12052312503 is a wasteful number, since it uses less digits than its factorization.

12052312503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161588.

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 12052312503 its reverse (30521325021), we get a palindrome (42573637524).

The spelling of 12052312503 in words is "twelve billion, fifty-two million, three hundred twelve thousand, five hundred three".

Divisors: 1 3 7 11 17 19 21 33 51 57 77 119 133 187 209 231 323 357 399 561 627 969 1309 1463 2261 3553 3927 4389 6783 10659 24871 74613 161531 484593 1130717 1776841 2746027 3069089 3392151 5330523 8238081 9207267 12437887 19222189 21483623 30206297 33759979 37313661 52174513 57666567 64450869 90618891 101279937 156523539 211444079 236319853 365221591 573919643 634332237 708959559 1095664773 1721758929 4017437501 12052312503