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16013031 = 317313981
BaseRepresentation
bin111101000101…
…011011100111
31010010112202020
4331011123213
513044404111
61331114223
7253052136
oct75053347
933115666
1016013031
119047911
125442973
133418788
1421ab91d
151614906
hexf456e7

16013031 has 8 divisors (see below), whose sum is σ = 22606704. Its totient is φ = 10047360.

The previous prime is 16013021. The next prime is 16013033. The reversal of 16013031 is 13031061.

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

It is not a de Polignac number, because 16013031 - 25 = 16012999 is a prime.

It is a super-2 number, since 2×160130312 = 512834323613922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16013031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16013033) 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, 156940 + ... + 157041.

It is an arithmetic number, because the mean of its divisors is an integer number (2825838).

Almost surely, 216013031 is an apocalyptic number.

16013031 is a deficient number, since it is larger than the sum of its proper divisors (6593673).

16013031 is a wasteful number, since it uses less digits than its factorization.

16013031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314001.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 16013031 is about 4001.6285434808. The cubic root of 16013031 is about 252.0525998792.

Adding to 16013031 its reverse (13031061), we get a palindrome (29044092).

The spelling of 16013031 in words is "sixteen million, thirteen thousand, thirty-one".

Divisors: 1 3 17 51 313981 941943 5337677 16013031