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51160137030 = 234587772019
BaseRepresentation
bin101111101001011000…
…011011110101000110
311220001102211020110000
4233221120123311012
51314233443341110
635300323142130
73460536663312
oct575130336506
9156042736400
1051160137030
111a773622192
129ab9514946
134a94217b42
142694844b42
1514e66591c0
hexbe961bd46

51160137030 has 80 divisors (see below), whose sum is σ = 137722693680. Its totient is φ = 13626957888.

The previous prime is 51160137011. The next prime is 51160137043. The reversal of 51160137030 is 3073106115.

51160137030 is a `hidden beast` number, since 51 + 1 + 601 + 3 + 7 + 0 + 3 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 51160136985 and 51160137003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 674361 + ... + 746379.

It is an arithmetic number, because the mean of its divisors is an integer number (1721533671).

Almost surely, 251160137030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51160137030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68861346840).

51160137030 is an abundant number, since it is smaller than the sum of its proper divisors (86562556650).

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

51160137030 is a wasteful number, since it uses less digits than its factorization.

51160137030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72915 (or 72906 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The spelling of 51160137030 in words is "fifty-one billion, one hundred sixty million, one hundred thirty-seven thousand, thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 270 405 810 877 1754 2631 4385 5262 7893 8770 13155 15786 23679 26310 39465 47358 71037 72019 78930 118395 142074 144038 216057 236790 355185 360095 432114 648171 710370 720190 1080285 1296342 1944513 2160570 3240855 3889026 5833539 6481710 9722565 11667078 19445130 29167695 58335390 63160663 126321326 189481989 315803315 378963978 568445967 631606630 947409945 1136891934 1705337901 1894819890 2842229835 3410675802 5116013703 5684459670 8526689505 10232027406 17053379010 25580068515 51160137030