Search a number
-
+
47023151 = 76717593
BaseRepresentation
bin1011001101100…
…0010000101111
310021111000122012
42303120100233
544014220101
64355511435
71110455510
oct263302057
9107430565
1047023151
11245a820a
12138b857b
139985466
146360a07
1541dcbbb
hex2cd842f

47023151 has 4 divisors (see below), whose sum is σ = 53740752. Its totient is φ = 40305552.

The previous prime is 47023133. The next prime is 47023153. The reversal of 47023151 is 15132074.

47023151 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 de Polignac number, because none of the positive numbers 2k-47023151 is a prime.

It is a super-2 number, since 2×470231512 = 4422353459937602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47023153) 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, 3358790 + ... + 3358803.

It is an arithmetic number, because the mean of its divisors is an integer number (13435188).

Almost surely, 247023151 is an apocalyptic number.

47023151 is a deficient number, since it is larger than the sum of its proper divisors (6717601).

47023151 is an equidigital number, since it uses as much as digits as its factorization.

47023151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6717600.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 47023151 is about 6857.3428527382. The cubic root of 47023151 is about 360.9418521404.

It can be divided in two parts, 47023 and 151, that added together give a palindrome (47174).

The spelling of 47023151 in words is "forty-seven million, twenty-three thousand, one hundred fifty-one".

Divisors: 1 7 6717593 47023151