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50319396 = 22321397761
BaseRepresentation
bin1011111111110…
…1000000100100
310111200111020100
42333331000210
5100340210041
64554304100
71150464531
oct277750044
9114614210
1050319396
1126449786
1214a28030
13a56a8ba
14697bd88
15463e6b6
hex2ffd024

50319396 has 18 divisors (see below), whose sum is σ = 127196342. Its totient is φ = 16773120.

The previous prime is 50319349. The next prime is 50319397. The reversal of 50319396 is 69391305.

It can be written as a sum of positive squares in only one way, i.e., 41990400 + 8328996 = 6480^2 + 2886^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×503193962 = 5064083227609632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1397761 = 50319396 / (5 + 0 + 3 + 1 + 9 + 3 + 9 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 50319396.

It is not an unprimeable number, because it can be changed into a prime (50319397) 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, 698845 + ... + 698916.

Almost surely, 250319396 is an apocalyptic number.

It is an amenable number.

50319396 is an abundant number, since it is smaller than the sum of its proper divisors (76876946).

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

50319396 is a wasteful number, since it uses less digits than its factorization.

50319396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397771 (or 1397766 counting only the distinct ones).

The product of its (nonzero) digits is 21870, while the sum is 36.

The square root of 50319396 is about 7093.6165670270. The cubic root of 50319396 is about 369.1859287293.

The spelling of 50319396 in words is "fifty million, three hundred nineteen thousand, three hundred ninety-six".

Divisors: 1 2 3 4 6 9 12 18 36 1397761 2795522 4193283 5591044 8386566 12579849 16773132 25159698 50319396