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51320141317700 = 22523222371592621
BaseRepresentation
bin10111010101100111001101…
…10010110000011001000100
320201201011020212221200001122
423222303212302300121010
523211312122134131300
6301052051503213112
713544520641445413
oct1352634662603104
9221634225850048
1051320141317700
1115396827951392
12590a22b5a7198
132283612574088
14c95c9db4347a
155dee4be17c85
hex2eace6cb0644

51320141317700 has 36 divisors (see below), whose sum is σ = 111365122183812. Its totient is φ = 20527979932800.

The previous prime is 51320141317681. The next prime is 51320141317717. The reversal of 51320141317700 is 771314102315.

It can be written as a sum of positive squares in 6 ways, for example, as 32543438404 + 51287597879296 = 180398^2 + 7161536^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31427390 + ... + 33020010.

It is an arithmetic number, because the mean of its divisors is an integer number (3093475616217).

Almost surely, 251320141317700 is an apocalyptic number.

51320141317700 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51320141317700 is an abundant number, since it is smaller than the sum of its proper divisors (60044980866112).

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

51320141317700 is a wasteful number, since it uses less digits than its factorization.

51320141317700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1914872 (or 1914865 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 35.

The spelling of 51320141317700 in words is "fifty-one trillion, three hundred twenty billion, one hundred forty-one million, three hundred seventeen thousand, seven hundred".

Divisors: 1 2 4 5 10 20 25 50 100 322237 644474 1288948 1592621 1611185 3185242 3222370 6370484 6444740 7963105 8055925 15926210 16111850 31852420 32223700 39815525 79631050 159262100 513201413177 1026402826354 2052805652708 2566007065885 5132014131770 10264028263540 12830035329425 25660070658850 51320141317700