Search a number
-
+
3081129427 = 23589722717
BaseRepresentation
bin1011011110100110…
…0100110111010011
321221201200120222201
42313221210313103
522302232120202
61225423144031
7136232111425
oct26751446723
97851616881
103081129427
111341243162
1271ba45017
133a144ba0c
142132c4815
1513076c387
hexb7a64dd3

3081129427 has 8 divisors (see below), whose sum is σ = 3215778336. Its totient is φ = 2946537792.

The previous prime is 3081129413. The next prime is 3081129431. The reversal of 3081129427 is 7249211803.

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 3081129427 - 27 = 3081129299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3081129407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124273 + ... + 146989.

It is an arithmetic number, because the mean of its divisors is an integer number (401972292).

Almost surely, 23081129427 is an apocalyptic number.

3081129427 is a deficient number, since it is larger than the sum of its proper divisors (134648909).

3081129427 is a wasteful number, since it uses less digits than its factorization.

3081129427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28637.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 3081129427 is about 55507.9222003490. The cubic root of 3081129427 is about 1455.1350908843.

The spelling of 3081129427 in words is "three billion, eighty-one million, one hundred twenty-nine thousand, four hundred twenty-seven".

Divisors: 1 23 5897 22717 135631 522491 133962149 3081129427