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239995044 = 223216134133
BaseRepresentation
bin11100100111000…
…00100010100100
3121201121000022100
432103200202210
5442414320134
635451532100
75642632002
oct1623404244
9551530270
10239995044
1111351a913
126845a030
133a94b803
1423c33a72
1516109999
hexe4e08a4

239995044 has 36 divisors (see below), whose sum is σ = 607177116. Its totient is φ = 79929408.

The previous prime is 239995009. The next prime is 239995051. The reversal of 239995044 is 440599932.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 164096100 + 75898944 = 12810^2 + 8712^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×2399950442 = 115195242289123872, which contains 22 as substring.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 56002 + ... + 60134.

It is an arithmetic number, because the mean of its divisors is an integer number (16866031).

Almost surely, 2239995044 is an apocalyptic number.

It is an amenable number.

239995044 is an abundant number, since it is smaller than the sum of its proper divisors (367182072).

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

239995044 is a wasteful number, since it uses less digits than its factorization.

239995044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5756 (or 5751 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The square root of 239995044 is about 15491.7734297917. The cubic root of 239995044 is about 621.4422235379.

The spelling of 239995044 in words is "two hundred thirty-nine million, nine hundred ninety-five thousand, forty-four".

Divisors: 1 2 3 4 6 9 12 18 36 1613 3226 4133 4839 6452 8266 9678 12399 14517 16532 19356 24798 29034 37197 49596 58068 74394 148788 6666529 13333058 19999587 26666116 39999174 59998761 79998348 119997522 239995044