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51345064265050 = 2521026901285301
BaseRepresentation
bin10111010110010101101000…
…10100010000010101011010
320201210112120210212120111201
423223022310110100111122
523212214142422440200
6301111332532344414
713546362362140453
oct1353126424202532
9221715523776451
1051345064265050
11153a635723a636
12591302617510a
132285a84b3c8ba
14c97185b9012a
155e0909e69c6a
hex2eb2b451055a

51345064265050 has 12 divisors (see below), whose sum is σ = 95501819533086. Its totient is φ = 20538025706000.

The previous prime is 51345064265039. The next prime is 51345064265059. The reversal of 51345064265050 is 5056246054315.

It can be written as a sum of positive squares in 3 ways, for example, as 41859877746241 + 9485186518809 = 6469921^2 + 3079803^2 .

It is a super-2 number, since 2×513450642650502 (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51345064265059) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 513450642601 + ... + 513450642700.

Almost surely, 251345064265050 is an apocalyptic number.

51345064265050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51345064265050 is a deficient number, since it is larger than the sum of its proper divisors (44156755268036).

51345064265050 is a wasteful number, since it uses less digits than its factorization.

51345064265050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026901285313 (or 1026901285308 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 46.

The spelling of 51345064265050 in words is "fifty-one trillion, three hundred forty-five billion, sixty-four million, two hundred sixty-five thousand, fifty".

Divisors: 1 2 5 10 25 50 1026901285301 2053802570602 5134506426505 10269012853010 25672532132525 51345064265050