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51150722050 = 2521023014441
BaseRepresentation
bin101111101000110100…
…100001010000000010
311220000210002220112001
4233220310201100002
51314224041101200
635255345254214
73460363651351
oct575064412002
9156023086461
1051150722050
111a76928160a
129ab633436a
134a9229c64c
1426934b3998
1514e58e976a
hexbe8d21402

51150722050 has 12 divisors (see below), whose sum is σ = 95140343106. Its totient is φ = 20460288800.

The previous prime is 51150722003. The next prime is 51150722053. The reversal of 51150722050 is 5022705115.

It can be written as a sum of positive squares in 3 ways, for example, as 38501895961 + 12648826089 = 196219^2 + 112467^2 .

It is not an unprimeable number, because it can be changed into a prime (51150722053) 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, 511507171 + ... + 511507270.

Almost surely, 251150722050 is an apocalyptic number.

51150722050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51150722050 is a deficient number, since it is larger than the sum of its proper divisors (43989621056).

51150722050 is a wasteful number, since it uses less digits than its factorization.

51150722050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023014453 (or 1023014448 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 28.

The spelling of 51150722050 in words is "fifty-one billion, one hundred fifty million, seven hundred twenty-two thousand, fifty".

Divisors: 1 2 5 10 25 50 1023014441 2046028882 5115072205 10230144410 25575361025 51150722050