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51130801300 = 22525319948479
BaseRepresentation
bin101111100111101000…
…100001110010010100
311212222101121211101111
4233213220201302110
51314203441120200
635253354304404
73460032432355
oct574750416224
9155871554344
1051130801300
111a759005887
129aab728104
134a8b116317
1426909a9d2c
1514e3cb20ba
hexbe7a21c94

51130801300 has 72 divisors (see below), whose sum is σ = 113617728000. Its totient is φ = 19965179520.

The previous prime is 51130801223. The next prime is 51130801303. The reversal of 51130801300 is 310803115.

51130801300 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×511308013002 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51130801303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1030461 + ... + 1078939.

It is an arithmetic number, because the mean of its divisors is an integer number (1578024000).

Almost surely, 251130801300 is an apocalyptic number.

51130801300 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 51130801300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56808864000).

51130801300 is an abundant number, since it is smaller than the sum of its proper divisors (62486926700).

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

51130801300 is a wasteful number, since it uses less digits than its factorization.

51130801300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48745 (or 48738 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The spelling of 51130801300 in words is "fifty-one billion, one hundred thirty million, eight hundred one thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 53 100 106 199 212 265 398 530 796 995 1060 1325 1990 2650 3980 4975 5300 9950 10547 19900 21094 42188 48479 52735 96958 105470 193916 210940 242395 263675 484790 527350 969580 1054700 1211975 2423950 2569387 4847900 5138774 9647321 10277548 12846935 19294642 25693870 38589284 48236605 51387740 64234675 96473210 128469350 192946420 241183025 256938700 482366050 511308013 964732100 1022616026 2045232052 2556540065 5113080130 10226160260 12782700325 25565400650 51130801300