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50121031 = 195944711
BaseRepresentation
bin1011111100110…
…0100101000111
310111022102010111
42333030211013
5100312333111
64550133451
71146010312
oct277144507
9114272114
1050121031
1126323744
1214951287
13a4cb51c
146929979
154600a21
hex2fcc947

50121031 has 8 divisors (see below), whose sum is σ = 53654400. Its totient is φ = 46677240.

The previous prime is 50121023. The next prime is 50121059. The reversal of 50121031 is 13012105.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 50121031 - 23 = 50121023 is a prime.

It is a super-2 number, since 2×501210312 = 5024235497005922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50121061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21235 + ... + 23476.

It is an arithmetic number, because the mean of its divisors is an integer number (6706800).

Almost surely, 250121031 is an apocalyptic number.

50121031 is a deficient number, since it is larger than the sum of its proper divisors (3533369).

50121031 is a wasteful number, since it uses less digits than its factorization.

50121031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44789.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 50121031 is about 7079.6208231797. The cubic root of 50121031 is about 368.7001650167.

Adding to 50121031 its reverse (13012105), we get a palindrome (63133136).

The spelling of 50121031 in words is "fifty million, one hundred twenty-one thousand, thirty-one".

Divisors: 1 19 59 1121 44711 849509 2637949 50121031