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54743980438 = 277155074427
BaseRepresentation
bin110010111110111111…
…101101100110010110
312020022012110100101001
4302332333231212112
51344103424333223
641052105253514
73645415104340
oct627677554626
9166265410331
1054743980438
1121242605844
12a73979429a
13521585c044
1429147ca290
1516560c89ad
hexcbefed996

54743980438 has 16 divisors (see below), whose sum is σ = 95168611584. Its totient is φ = 23131258920.

The previous prime is 54743980433. The next prime is 54743980453. The reversal of 54743980438 is 83408934745.

It is a super-2 number, since 2×547439804382 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54743980433) 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, 27536220 + ... + 27538207.

It is an arithmetic number, because the mean of its divisors is an integer number (5948038224).

Almost surely, 254743980438 is an apocalyptic number.

54743980438 is a deficient number, since it is larger than the sum of its proper divisors (40424631146).

54743980438 is a wasteful number, since it uses less digits than its factorization.

54743980438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55074507.

The product of its (nonzero) digits is 11612160, while the sum is 55.

The spelling of 54743980438 in words is "fifty-four billion, seven hundred forty-three million, nine hundred eighty thousand, four hundred thirty-eight".

Divisors: 1 2 7 14 71 142 497 994 55074427 110148854 385520989 771041978 3910284317 7820568634 27371990219 54743980438