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232140412 = 2278290729
BaseRepresentation
bin11011101011000…
…10111001111100
3121011210221210001
431311202321330
5433411443122
635011324044
75516106130
oct1565427174
9534727701
10232140412
1110a045589
12658b0624
133912b5ba
1422b8b3c0
15155a7527
hexdd62e7c

232140412 has 12 divisors (see below), whose sum is σ = 464280880. Its totient is φ = 99488736.

The previous prime is 232140409. The next prime is 232140413. The reversal of 232140412 is 214041232.

232140412 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 232140412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232140413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4145337 + ... + 4145392.

Almost surely, 2232140412 is an apocalyptic number.

It is an amenable number.

232140412 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

232140412 is a wasteful number, since it uses less digits than its factorization.

232140412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8290740 (or 8290738 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 232140412 is about 15236.1547642442. The cubic root of 232140412 is about 614.5873028240.

Adding to 232140412 its reverse (214041232), we get a palindrome (446181644).

The spelling of 232140412 in words is "two hundred thirty-two million, one hundred forty thousand, four hundred twelve".

Divisors: 1 2 4 7 14 28 8290729 16581458 33162916 58035103 116070206 232140412