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12542355554 = 253409439659
BaseRepresentation
bin10111010111001010…
…10010100001100010
31012101002122200022012
423223211102201202
5201141320334204
65432322112522
7622545156161
oct135345224142
935332580265
1012542355554
115356918403
1225204ab742
13124b629681
1486da7b3d8
154d61a376e
hex2eb952862

12542355554 has 32 divisors (see below), whose sum is σ = 19288368000. Its totient is φ = 6114536064.

The previous prime is 12542355547. The next prime is 12542355559. The reversal of 12542355554 is 45555324521.

12542355554 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12542355559) 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, 19032077 + ... + 19032735.

It is an arithmetic number, because the mean of its divisors is an integer number (602761500).

Almost surely, 212542355554 is an apocalyptic number.

12542355554 is a deficient number, since it is larger than the sum of its proper divisors (6746012446).

12542355554 is a wasteful number, since it uses less digits than its factorization.

12542355554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562.

The product of its digits is 600000, while the sum is 41.

The spelling of 12542355554 in words is "twelve billion, five hundred forty-two million, three hundred fifty-five thousand, five hundred fifty-four".

Divisors: 1 2 53 106 409 439 659 818 878 1318 21677 23267 34927 43354 46534 69854 179551 269531 289301 359102 539062 578602 9516203 14285143 15332953 19032406 28570286 30665906 118324109 236648218 6271177777 12542355554