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51122868275405 = 549032085370927
BaseRepresentation
bin10111001111110111110000…
…11001110100100011001101
320201000022001120220210021202
423213323320121310203031
523200044113234303110
6300421304345235245
713524335222322413
oct1347737031644315
9221008046823252
1051122868275405
11153200a5409943
125897b55192b25
13226ab341b9954
14c8a507cb12b3
155d9c530a10a5
hex2e7ef86748cd

51122868275405 has 8 divisors (see below), whose sum is σ = 61359954185472. Its totient is φ = 40889953117008.

The previous prime is 51122868275357. The next prime is 51122868275443. The reversal of 51122868275405 is 50457286822115.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51122868275405 - 230 = 51121794533581 is a prime.

It is a super-2 number, since 2×511228682754052 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1042660949 + ... + 1042709978.

It is an arithmetic number, because the mean of its divisors is an integer number (7669994273184).

Almost surely, 251122868275405 is an apocalyptic number.

It is an amenable number.

51122868275405 is a deficient number, since it is larger than the sum of its proper divisors (10237085910067).

51122868275405 is a wasteful number, since it uses less digits than its factorization.

51122868275405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2085375835.

The product of its (nonzero) digits is 10752000, while the sum is 56.

The spelling of 51122868275405 in words is "fifty-one trillion, one hundred twenty-two billion, eight hundred sixty-eight million, two hundred seventy-five thousand, four hundred five".

Divisors: 1 5 4903 24515 2085370927 10426854635 10224573655081 51122868275405