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55102315415 = 571721914789
BaseRepresentation
bin110011010100010110…
…101001101110010111
312021020011201122112212
4303110112221232113
51400322143043130
641151425504035
73660325644620
oct632426515627
9167204648485
1055102315415
1121406903154
12a8197a201b
135271b72c84
14294a226a47
1516777abe95
hexcd45a9b97

55102315415 has 16 divisors (see below), whose sum is σ = 75612882240. Its totient is φ = 37762448640.

The previous prime is 55102315409. The next prime is 55102315421. The reversal of 55102315415 is 51451320155.

It is an interprime number because it is at equal distance from previous prime (55102315409) and next prime (55102315421).

It is not a de Polignac number, because 55102315415 - 24 = 55102315399 is a prime.

It is a congruent 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, 397160 + ... + 517629.

It is an arithmetic number, because the mean of its divisors is an integer number (4725805140).

Almost surely, 255102315415 is an apocalyptic number.

55102315415 is a deficient number, since it is larger than the sum of its proper divisors (20510566825).

55102315415 is a wasteful number, since it uses less digits than its factorization.

55102315415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916522.

The product of its (nonzero) digits is 15000, while the sum is 32.

The spelling of 55102315415 in words is "fifty-five billion, one hundred two million, three hundred fifteen thousand, four hundred fifteen".

Divisors: 1 5 7 35 1721 8605 12047 60235 914789 4573945 6403523 32017615 1574351869 7871759345 11020463083 55102315415