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239374452 = 22319947871
BaseRepresentation
bin11100100010010…
…01000001110100
3121200102111000110
432101021001310
5442234440302
635430343020
75634435462
oct1621110164
9550374013
10239374452
11113136629
12681baa70
133a7921b5
1423b11832
1516035b6c
hexe449074

239374452 has 12 divisors (see below), whose sum is σ = 558540416. Its totient is φ = 79791480.

The previous prime is 239374427. The next prime is 239374459. The reversal of 239374452 is 254473932.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 239374452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239374459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9973924 + ... + 9973947.

Almost surely, 2239374452 is an apocalyptic number.

It is an amenable number.

239374452 is an abundant number, since it is smaller than the sum of its proper divisors (319165964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

239374452 is a wasteful number, since it uses less digits than its factorization.

239374452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19947878 (or 19947876 counting only the distinct ones).

The product of its digits is 181440, while the sum is 39.

The square root of 239374452 is about 15471.7307370572. The cubic root of 239374452 is about 620.9061083385.

The spelling of 239374452 in words is "two hundred thirty-nine million, three hundred seventy-four thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 12 19947871 39895742 59843613 79791484 119687226 239374452