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232143252 = 223113156731
BaseRepresentation
bin11011101011000…
…11100110010100
3121011211002200020
431311203212110
5433412041002
635011345140
75516120325
oct1565434624
9534732606
10232143252
1110a047730
12658b21b0
133912c993
1422b8c44c
15155a82bc
hexdd63994

232143252 has 48 divisors (see below), whose sum is σ = 609982464. Its totient is φ = 68076000.

The previous prime is 232143227. The next prime is 232143253. The reversal of 232143252 is 252341232.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232143253) 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, 24274 + ... + 32457.

It is an arithmetic number, because the mean of its divisors is an integer number (12707968).

Almost surely, 2232143252 is an apocalyptic number.

232143252 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

232143252 is an abundant number, since it is smaller than the sum of its proper divisors (377839212).

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

232143252 is a wasteful number, since it uses less digits than its factorization.

232143252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56780 (or 56778 counting only the distinct ones).

The product of its digits is 2880, while the sum is 24.

The square root of 232143252 is about 15236.2479633275. The cubic root of 232143252 is about 614.5898090957.

Adding to 232143252 its reverse (252341232), we get a palindrome (484484484).

The spelling of 232143252 in words is "two hundred thirty-two million, one hundred forty-three thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 11 12 22 31 33 44 62 66 93 124 132 186 341 372 682 1023 1364 2046 4092 56731 113462 170193 226924 340386 624041 680772 1248082 1758661 1872123 2496164 3517322 3744246 5275983 7034644 7488492 10551966 19345271 21103932 38690542 58035813 77381084 116071626 232143252