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51054431415 = 3513292419743
BaseRepresentation
bin101111100011000101…
…001100110010110111
311212210001220211121020
4233203011030302313
51314024413301130
635242025352223
73455114335551
oct574305146267
9155701824536
1051054431415
111a719993a79
129a8a038673
134a78357340
1426847aa4d1
1514dc228e10
hexbe314ccb7

51054431415 has 96 divisors (see below), whose sum is σ = 91449146880. Its totient is φ = 24177280512.

The previous prime is 51054431387. The next prime is 51054431423. The reversal of 51054431415 is 51413445015.

It is not a de Polignac number, because 51054431415 - 25 = 51054431383 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 68713534 + ... + 68714276.

It is an arithmetic number, because the mean of its divisors is an integer number (952595280).

Almost surely, 251054431415 is an apocalyptic number.

51054431415 is a deficient number, since it is larger than the sum of its proper divisors (40394715465).

51054431415 is a wasteful number, since it uses less digits than its factorization.

51054431415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241 (or 1212 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

The spelling of 51054431415 in words is "fifty-one billion, fifty-four million, four hundred thirty-one thousand, four hundred fifteen".

Divisors: 1 3 5 13 15 29 39 65 87 145 195 377 419 435 743 841 1131 1257 1885 2095 2229 2523 3715 4205 5447 5655 6285 9659 10933 11145 12151 12615 16341 21547 27235 28977 32799 36453 48295 54665 60755 64641 81705 107735 144885 157963 163995 182265 280111 311317 323205 352379 473889 624863 789815 840333 933951 1057137 1400555 1556585 1761895 1874589 2369445 3124315 4047121 4201665 4580927 4669755 5285685 8123219 9028193 9372945 12141363 13742781 20235605 22904635 24369657 27084579 40616095 45140965 60706815 68713905 117366509 121848285 135422895 261817597 352099527 586832545 785452791 1309087985 1760497635 3403628761 3927263955 10210886283 17018143805 51054431415