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52008251900 = 22521152190749
BaseRepresentation
bin110000011011111011…
…101111000111111100
311222020112200221022212
4300123323233013330
51323003103030100
635520421155552
73520545563363
oct603373570774
9158215627285
1052008251900
1120069336470
12a0b555bbb8
134b9ab46067
1427353367da
151545d37635
hexc1beef1fc

52008251900 has 72 divisors (see below), whose sum is σ = 123355386000. Its totient is φ = 18875584000.

The previous prime is 52008251899. The next prime is 52008251917. The reversal of 52008251900 is 915280025.

It is a super-2 number, since 2×520082519002 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 527726 + ... + 618474.

It is an arithmetic number, because the mean of its divisors is an integer number (1713269250).

Almost surely, 252008251900 is an apocalyptic number.

52008251900 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 52008251900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61677693000).

52008251900 is an abundant number, since it is smaller than the sum of its proper divisors (71347134100).

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

52008251900 is a wasteful number, since it uses less digits than its factorization.

52008251900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91295 (or 91288 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 32.

The spelling of 52008251900 in words is "fifty-two billion, eight million, two hundred fifty-one thousand, nine hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 220 275 521 550 1042 1100 2084 2605 5210 5731 10420 11462 13025 22924 26050 28655 52100 57310 90749 114620 143275 181498 286550 362996 453745 573100 907490 998239 1814980 1996478 2268725 3992956 4537450 4991195 9074900 9982390 19964780 24955975 47280229 49911950 94560458 99823900 189120916 236401145 472802290 520082519 945604580 1040165038 1182005725 2080330076 2364011450 2600412595 4728022900 5200825190 10401650380 13002062975 26004125950 52008251900