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13405451233974 = 2319117591677491
BaseRepresentation
bin1100001100010011001100…
…1010001010101010110110
31202110112210221112021110220
43003010303022022222312
53224113331003441344
644302213531355210
72552340402256002
oct303046312125266
952415727467426
1013405451233974
1142a9246818938
1216060965b2b06
13763189794897
14344b82189702
15183a8e91ac19
hexc313328aab6

13405451233974 has 16 divisors (see below), whose sum is σ = 28222002598080. Its totient is φ = 4233300389640.

The previous prime is 13405451233973. The next prime is 13405451234017. The reversal of 13405451233974 is 47933215450431.

It is a super-2 number, since 2×134054512339742 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13405451233973) 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, 58795838632 + ... + 58795838859.

It is an arithmetic number, because the mean of its divisors is an integer number (1763875162380).

Almost surely, 213405451233974 is an apocalyptic number.

13405451233974 is an abundant number, since it is smaller than the sum of its proper divisors (14816551364106).

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

13405451233974 is a wasteful number, since it uses less digits than its factorization.

13405451233974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117591677515.

The product of its (nonzero) digits is 5443200, while the sum is 51.

The spelling of 13405451233974 in words is "thirteen trillion, four hundred five billion, four hundred fifty-one million, two hundred thirty-three thousand, nine hundred seventy-four".

Divisors: 1 2 3 6 19 38 57 114 117591677491 235183354982 352775032473 705550064946 2234241872329 4468483744658 6702725616987 13405451233974