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51103054434 = 23157449120823
BaseRepresentation
bin101111100101111110…
…101011101001100010
311212220110102010211210
4233211332223221202
51314124340220214
635250523450550
73456244536615
oct574576535142
9155813363753
1051103054434
111a744384193
129aa2386a56
134a8544ca63
14268b02617c
1514e1630b59
hexbe5faba62

51103054434 has 32 divisors (see below), whose sum is σ = 103087036800. Its totient is φ = 16888015872.

The previous prime is 51103054399. The next prime is 51103054489. The reversal of 51103054434 is 43445030115.

It is a super-2 number, since 2×511030544342 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 362547 + ... + 483369.

It is an arithmetic number, because the mean of its divisors is an integer number (3221469900).

Almost surely, 251103054434 is an apocalyptic number.

51103054434 is an abundant number, since it is smaller than the sum of its proper divisors (51983982366).

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

51103054434 is a wasteful number, since it uses less digits than its factorization.

51103054434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121434.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 51103054434 its reverse (43445030115), we get a palindrome (94548084549).

The spelling of 51103054434 in words is "fifty-one billion, one hundred three million, fifty-four thousand, four hundred thirty-four".

Divisors: 1 2 3 6 157 314 449 471 898 942 1347 2694 70493 120823 140986 211479 241646 362469 422958 724938 18969211 37938422 54249527 56907633 108499054 113815266 162748581 325497162 8517175739 17034351478 25551527217 51103054434