Search a number
-
+
14681986531 = 163571157747
BaseRepresentation
bin11011010110001110…
…10101010111100011
31101220012202012012221
431223013111113203
5220032042032111
610424513531511
71026555553312
oct155307252743
941805665187
1014681986531
116254664873
122a18b73b97
1314cc9b20c4
149d3cc2279
155ade48371
hex36b1d55e3

14681986531 has 8 divisors (see below), whose sum is σ = 14798024384. Its totient is φ = 14566265640.

The previous prime is 14681986499. The next prime is 14681986537. The reversal of 14681986531 is 13568918641.

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 14681986531 - 25 = 14681986499 is a prime.

It is a super-2 number, since 2×146819865312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14681986537) 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, 14200 + ... + 171946.

It is an arithmetic number, because the mean of its divisors is an integer number (1849753048).

Almost surely, 214681986531 is an apocalyptic number.

14681986531 is a deficient number, since it is larger than the sum of its proper divisors (116037853).

14681986531 is a wasteful number, since it uses less digits than its factorization.

14681986531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158481.

The product of its digits is 1244160, while the sum is 52.

The spelling of 14681986531 in words is "fourteen billion, six hundred eighty-one million, nine hundred eighty-six thousand, five hundred thirty-one".

Divisors: 1 163 571 93073 157747 25712761 90073537 14681986531