Search a number
-
+
51102504125 = 533160121943
BaseRepresentation
bin101111100101111100…
…100101010010111101
311212220102101011221222
4233211330211102331
51314124220113000
635250504003125
73456240055331
oct574574452275
9155812334858
1051102504125
111a744038792
129aa21604a5
134a852b942a
14268ad217c1
1514e1572a85
hexbe5f254bd

51102504125 has 32 divisors (see below), whose sum is σ = 65945757696. Its totient is φ = 39495600000.

The previous prime is 51102504073. The next prime is 51102504163. The reversal of 51102504125 is 52140520115.

It is not a de Polignac number, because 51102504125 - 28 = 51102503869 is a prime.

It is a super-2 number, since 2×511025041252 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51102504094 and 51102504103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2317904 + ... + 2339846.

It is an arithmetic number, because the mean of its divisors is an integer number (2060804928).

Almost surely, 251102504125 is an apocalyptic number.

It is an amenable number.

51102504125 is a deficient number, since it is larger than the sum of its proper divisors (14843253571).

51102504125 is a wasteful number, since it uses less digits than its factorization.

51102504125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22590 (or 22580 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 26.

The spelling of 51102504125 in words is "fifty-one billion, one hundred two million, five hundred four thousand, one hundred twenty-five".

Divisors: 1 5 25 31 125 155 601 775 3005 3875 15025 18631 21943 75125 93155 109715 465775 548575 680233 2328875 2742875 3401165 13187743 17005825 65938715 85029125 329693575 408820033 1648467875 2044100165 10220500825 51102504125