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232331142 = 23234873457
BaseRepresentation
bin11011101100100…
…01011110000110
3121012011122102010
431312101132012
5433434044032
635015355050
75520532161
oct1566213606
9535148363
10232331142
1110a16590a
1265982a86
1339197364
1422bdaad8
15155e3ccc
hexdd91786

232331142 has 32 divisors (see below), whose sum is σ = 486001152. Its totient is φ = 73903104.

The previous prime is 232331137. The next prime is 232331147. The reversal of 232331142 is 241133232.

It is an interprime number because it is at equal distance from previous prime (232331137) and next prime (232331147).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232331147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65478 + ... + 68934.

It is an arithmetic number, because the mean of its divisors is an integer number (15187536).

Almost surely, 2232331142 is an apocalyptic number.

232331142 is an abundant number, since it is smaller than the sum of its proper divisors (253670010).

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

232331142 is a wasteful number, since it uses less digits than its factorization.

232331142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3972.

The product of its digits is 864, while the sum is 21.

The square root of 232331142 is about 15242.4126043091. The cubic root of 232331142 is about 614.7555747571.

Adding to 232331142 its reverse (241133232), we get a palindrome (473464374).

The spelling of 232331142 in words is "two hundred thirty-two million, three hundred thirty-one thousand, one hundred forty-two".

Divisors: 1 2 3 6 23 46 69 138 487 974 1461 2922 3457 6914 10371 11201 20742 22402 33603 67206 79511 159022 238533 477066 1683559 3367118 5050677 10101354 38721857 77443714 116165571 232331142