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51269086300 = 22521736014931
BaseRepresentation
bin101111101111111000…
…000010110001011100
311220100000211102202011
4233233320002301130
51314444341230200
635315214241004
73463332020545
oct575770026134
9156300742664
1051269086300
111a81a076403
129b29ab6164
134ab0972b73
1426a50c54cc
151500eca5ba
hexbefe02c5c

51269086300 has 72 divisors (see below), whose sum is σ = 112105918512. Its totient is φ = 20351040000.

The previous prime is 51269086289. The next prime is 51269086327. The reversal of 51269086300 is 368096215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10394835 + ... + 10399765.

It is an arithmetic number, because the mean of its divisors is an integer number (1557026646).

Almost surely, 251269086300 is an apocalyptic number.

51269086300 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51269086300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56052959256).

51269086300 is an abundant number, since it is smaller than the sum of its proper divisors (60836832212).

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

51269086300 is a wasteful number, since it uses less digits than its factorization.

51269086300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5719 (or 5712 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 51269086300 in words is "fifty-one billion, two hundred sixty-nine million, eighty-six thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 173 346 601 692 865 1202 1730 2404 3005 3460 4325 4931 6010 8650 9862 12020 15025 17300 19724 24655 30050 49310 60100 98620 103973 123275 207946 246550 415892 493100 519865 853063 1039730 1706126 2079460 2599325 2963531 3412252 4265315 5198650 5927062 8530630 10397300 11854124 14817655 17061260 21326575 29635310 42653150 59270620 74088275 85306300 148176550 296353100 512690863 1025381726 2050763452 2563454315 5126908630 10253817260 12817271575 25634543150 51269086300