Search a number
-
+
47375431 = 7927591
BaseRepresentation
bin1011010010111…
…0010001000111
310022010220212121
42310232101013
544112003211
64411230411
71113453535
oct264562107
9108126777
1047375431
1124818954
1213a48407
139a798cc
146413155
15425c271
hex2d2e447

47375431 has 6 divisors (see below), whose sum is σ = 47989032. Its totient is φ = 46769580.

The previous prime is 47375411. The next prime is 47375437. The reversal of 47375431 is 13457374.

47375431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47375431 - 25 = 47375399 is a prime.

It is a super-2 number, since 2×473754312 = 4488862924871522, 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 (47375437) 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 5 ways as a sum of consecutive naturals, for example, 2446 + ... + 10036.

It is an arithmetic number, because the mean of its divisors is an integer number (7998172).

Almost surely, 247375431 is an apocalyptic number.

47375431 is a deficient number, since it is larger than the sum of its proper divisors (613601).

47375431 is an frugal number, since it uses more digits than its factorization.

47375431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7749 (or 7670 counting only the distinct ones).

The product of its digits is 35280, while the sum is 34.

The square root of 47375431 is about 6882.9812581468. The cubic root of 47375431 is about 361.8409580863.

The spelling of 47375431 in words is "forty-seven million, three hundred seventy-five thousand, four hundred thirty-one".

Divisors: 1 79 6241 7591 599689 47375431