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54351516500647 = 1943195469340339
BaseRepresentation
bin11000101101110101100101…
…10101011000001010100111
321010102221202122011101020121
430112322302311120022213
524110443401211010042
6311332424133542411
714306524150403212
oct1426726265301247
9233387678141217
1054351516500647
111635539213a423
126119830aa4a07
132443431338992
14d5c8ad976779
15643c1ad77367
hex316eb2d582a7

54351516500647 has 16 divisors (see below), whose sum is σ = 58543108624000. Its totient is φ = 50293042267104.

The previous prime is 54351516500629. The next prime is 54351516500689. The reversal of 54351516500647 is 74600561515345.

It is a cyclic number.

It is not a de Polignac number, because 54351516500647 - 211 = 54351516498599 is a prime.

It is a super-2 number, since 2×543515165006472 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54351516500594 and 54351516500603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54351516506647) 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, 159528004 + ... + 159868342.

It is an arithmetic number, because the mean of its divisors is an integer number (3658944289000).

Almost surely, 254351516500647 is an apocalyptic number.

54351516500647 is a deficient number, since it is larger than the sum of its proper divisors (4191592123353).

54351516500647 is a wasteful number, since it uses less digits than its factorization.

54351516500647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535870.

The product of its (nonzero) digits is 7560000, while the sum is 52.

The spelling of 54351516500647 in words is "fifty-four trillion, three hundred fifty-one billion, five hundred sixteen million, five hundred thousand, six hundred forty-seven".

Divisors: 1 19 43 817 195469 340339 3713911 6466441 8405167 14634577 159698173 278056963 66525723991 1263988755829 2860606131613 54351516500647