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51428308871008 = 251607134652219
BaseRepresentation
bin10111011000110000101100…
…00101001110011101100000
320202002111110021021201010201
423230120112011032131200
523220100134032333013
6301213501113234544
713555400302462606
oct1354302605163540
9222074407251121
1051428308871008
1115428694696143
125927198702a54
1322908902303a4
14c9b201805876
155e2b7d1e83dd
hex2ec61614e760

51428308871008 has 12 divisors (see below), whose sum is σ = 101249483089860. Its totient is φ = 25714154435488.

The previous prime is 51428308870999. The next prime is 51428308871033. The reversal of 51428308871008 is 80017880382415.

It is a self number, because there is not a number n which added to its sum of digits gives 51428308871008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 803567326078 + ... + 803567326141.

It is an arithmetic number, because the mean of its divisors is an integer number (8437456924155).

Almost surely, 251428308871008 is an apocalyptic number.

It is an amenable number.

51428308871008 is a deficient number, since it is larger than the sum of its proper divisors (49821174218852).

51428308871008 is a wasteful number, since it uses less digits than its factorization.

51428308871008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1607134652229 (or 1607134652221 counting only the distinct ones).

The product of its (nonzero) digits is 3440640, while the sum is 55.

The spelling of 51428308871008 in words is "fifty-one trillion, four hundred twenty-eight billion, three hundred eight million, eight hundred seventy-one thousand, eight".

Divisors: 1 2 4 8 16 32 1607134652219 3214269304438 6428538608876 12857077217752 25714154435504 51428308871008