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50970131 = 172998243
BaseRepresentation
bin1100001001101…
…1111000010011
310112220112212122
43002123320103
5101022021011
65020244455
71156144652
oct302337023
9115815778
1050970131
1126853683
12150a072b
13a737b54
146aab199
15471c3db
hex309be13

50970131 has 4 divisors (see below), whose sum is σ = 53968392. Its totient is φ = 47971872.

The previous prime is 50970109. The next prime is 50970149. The reversal of 50970131 is 13107905.

50970131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-50970131 is a prime.

It is a super-2 number, since 2×509701312 = 5195908508314322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50970131.

It is not an unprimeable number, because it can be changed into a prime (50970151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1499105 + ... + 1499138.

It is an arithmetic number, because the mean of its divisors is an integer number (13492098).

Almost surely, 250970131 is an apocalyptic number.

50970131 is a deficient number, since it is larger than the sum of its proper divisors (2998261).

50970131 is a wasteful number, since it uses less digits than its factorization.

50970131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2998260.

The product of its (nonzero) digits is 945, while the sum is 26.

The square root of 50970131 is about 7139.3368739681. The cubic root of 50970131 is about 370.7705659985.

The spelling of 50970131 in words is "fifty million, nine hundred seventy thousand, one hundred thirty-one".

Divisors: 1 17 2998243 50970131