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56150631 = 332079653
BaseRepresentation
bin1101011000110…
…0101001100111
310220122202012000
43112030221213
5103333310011
65323300343
71251162315
oct326145147
9126582160
1056150631
1129771889
121697a6b3
13b82cb34
1476590b5
154de2356
hex358ca67

56150631 has 8 divisors (see below), whose sum is σ = 83186160. Its totient is φ = 37433736.

The previous prime is 56150617. The next prime is 56150639. The reversal of 56150631 is 13605165.

It is a happy number.

It is not a de Polignac number, because 56150631 - 25 = 56150599 is a prime.

It is a super-2 number, since 2×561506312 = 6305786723396322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 2079653 = 56150631 / (5 + 6 + 1 + 5 + 0 + 6 + 3 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 56150595 and 56150604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56150639) 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, 1039800 + ... + 1039853.

It is an arithmetic number, because the mean of its divisors is an integer number (10398270).

Almost surely, 256150631 is an apocalyptic number.

56150631 is a deficient number, since it is larger than the sum of its proper divisors (27035529).

56150631 is a wasteful number, since it uses less digits than its factorization.

56150631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2079662 (or 2079656 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 56150631 is about 7493.3724717246. The cubic root of 56150631 is about 382.9289612762.

Adding to 56150631 its reverse (13605165), we get a palindrome (69755796).

The spelling of 56150631 in words is "fifty-six million, one hundred fifty thousand, six hundred thirty-one".

Divisors: 1 3 9 27 2079653 6238959 18716877 56150631