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51880903167400 = 23524327772172367
BaseRepresentation
bin10111100101111011101101…
…10011011100110110101000
320210200202200100022011100221
423302331312303130312220
523300004042202324100
6302201431411535424
713633162100513656
oct1362756663346650
9223622610264327
1051880903167400
111559262733a89a
12599aa495ba574
1322c446ac35268
14cb5098a93dd6
155ee81c0dc01a
hex2f2f76cdcda8

51880903167400 has 96 divisors (see below), whose sum is σ = 123472791699840. Its totient is φ = 20262439733760.

The previous prime is 51880903167389. The next prime is 51880903167493. The reversal of 51880903167400 is 476130908815.

It is a super-2 number, since 2×518809031674002 (a number of 28 digits) contains 22 as substring.

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, 22796017 + ... + 24968383.

It is an arithmetic number, because the mean of its divisors is an integer number (1286174913540).

Almost surely, 251880903167400 is an apocalyptic number.

51880903167400 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 51880903167400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61736395849920).

51880903167400 is an abundant number, since it is smaller than the sum of its proper divisors (71591888532440).

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

51880903167400 is a wasteful number, since it uses less digits than its factorization.

51880903167400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2175203 (or 2175194 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 52.

The spelling of 51880903167400 in words is "fifty-one trillion, eight hundred eighty billion, nine hundred three million, one hundred sixty-seven thousand, four hundred".

Divisors: 1 2 4 5 8 10 20 25 40 43 50 86 100 172 200 215 344 430 860 1075 1720 2150 2777 4300 5554 8600 11108 13885 22216 27770 55540 69425 111080 119411 138850 238822 277700 477644 555400 597055 955288 1194110 2172367 2388220 2985275 4344734 4776440 5970550 8689468 10861835 11941100 17378936 21723670 23882200 43447340 54309175 86894680 93411781 108618350 186823562 217236700 373647124 434473400 467058905 747294248 934117810 1868235620 2335294525 3736471240 4670589050 6032663159 9341178100 12065326318 18682356200 24130652636 30163315795 48261305272 60326631590 120653263180 150816578975 241306526360 259404515837 301633157950 518809031674 603266315900 1037618063348 1206532631800 1297022579185 2075236126696 2594045158370 5188090316740 6485112895925 10376180633480 12970225791850 25940451583700 51880903167400