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51132144123115 = 51123376409579
BaseRepresentation
bin10111010000001001000010…
…10010010111110011101011
320201001012000001001200012221
423220010201102113303223
523200222112343414430
6300425441023014511
713525114124611246
oct1350044122276353
9221035001050187
1051132144123115
1115324025388590
12589990373a437
13226b981b5c633
14c8ab47bb025d
155da0e75ba57a
hex2e8121497ceb

51132144123115 has 32 divisors (see below), whose sum is σ = 69978949747200. Its totient is φ = 35570186750560.

The previous prime is 51132144123107. The next prime is 51132144123119.

51132144123115 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51132144123115 - 23 = 51132144123107 is a prime.

It is a super-2 number, since 2×511321441231152 (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51132144123119) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37535605 + ... + 38873974.

It is an arithmetic number, because the mean of its divisors is an integer number (2186842179600).

Almost surely, 251132144123115 is an apocalyptic number.

51132144123115 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51132144123115 is a deficient number, since it is larger than the sum of its proper divisors (18846805624085).

51132144123115 is an equidigital number, since it uses as much as digits as its factorization.

51132144123115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76409664 (or 76409618 counting only the distinct ones).

The product of its digits is 14400, while the sum is 34.

It can be divided in two parts, 5113214 and 4123115, that added together give a palindrome (9236329).

The spelling of 51132144123115 in words is "fifty-one trillion, one hundred thirty-two billion, one hundred forty-four million, one hundred twenty-three thousand, one hundred fifteen".

Divisors: 1 5 11 23 55 115 253 529 1265 2645 5819 12167 29095 60835 133837 669185 76409579 382047895 840505369 1757420317 4202526845 8787101585 19331623487 40420667291 96658117435 202103336455 444627340201 929675347693 2223136701005 4648376738465 10226428824623 51132144123115