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50515232145 = 357268728207
BaseRepresentation
bin101111000010111100…
…010100010110010001
311211101111022200020220
4233002330110112101
51311423344412040
635112324423253
73435546250200
oct570274242621
9154344280226
1050515232145
111a472593644
129959547b29
1349c0729011
142632d2d237
1514a9c1b2d0
hexbc2f14591

50515232145 has 24 divisors (see below), whose sum is σ = 94020188544. Its totient is φ = 23092677216.

The previous prime is 50515232137. The next prime is 50515232149. The reversal of 50515232145 is 54123251505.

It is not a de Polignac number, because 50515232145 - 23 = 50515232137 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50515232149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34363369 + ... + 34364838.

It is an arithmetic number, because the mean of its divisors is an integer number (3917507856).

Almost surely, 250515232145 is an apocalyptic number.

It is an amenable number.

50515232145 is a deficient number, since it is larger than the sum of its proper divisors (43504956399).

50515232145 is a wasteful number, since it uses less digits than its factorization.

50515232145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68728229 (or 68728222 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 33.

The spelling of 50515232145 in words is "fifty billion, five hundred fifteen million, two hundred thirty-two thousand, one hundred forty-five".

Divisors: 1 3 5 7 15 21 35 49 105 147 245 735 68728207 206184621 343641035 481097449 1030923105 1443292347 2405487245 3367682143 7216461735 10103046429 16838410715 50515232145