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50019153438 = 23157389136501
BaseRepresentation
bin101110100101010111…
…111011011000011110
311210002220212021012110
4232211113323120132
51304414400402223
634551204014450
73420343534452
oct564527733036
9153086767173
1050019153438
111a238565341
12983b391426
134941a17a17
1425c70b8662
15147b3c9d93
hexba55fb61e

50019153438 has 32 divisors (see below), whose sum is σ = 100935038880. Its totient is φ = 16524144000.

The previous prime is 50019153433. The next prime is 50019153451. The reversal of 50019153438 is 83435191005.

It is a junction number, because it is equal to n+sod(n) for n = 50019153396 and 50019153405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50019153433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 298188 + ... + 434688.

It is an arithmetic number, because the mean of its divisors is an integer number (3154219965).

Almost surely, 250019153438 is an apocalyptic number.

50019153438 is an abundant number, since it is smaller than the sum of its proper divisors (50915885442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50019153438 is a wasteful number, since it uses less digits than its factorization.

50019153438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137052.

The product of its (nonzero) digits is 64800, while the sum is 39.

The spelling of 50019153438 in words is "fifty billion, nineteen million, one hundred fifty-three thousand, four hundred thirty-eight".

Divisors: 1 2 3 6 157 314 389 471 778 942 1167 2334 61073 122146 136501 183219 273002 366438 409503 819006 21430657 42861314 53098889 64291971 106197778 128583942 159296667 318593334 8336525573 16673051146 25009576719 50019153438