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232113140 = 22574338557
BaseRepresentation
bin11011101010111…
…00001111110100
3121011202120100222
431311130033310
5433410110030
635010553512
75515633460
oct1565341764
9534676328
10232113140
1110a027046
1265898898
133911c06c
1422b814a0
151559e3e5
hexdd5c3f4

232113140 has 48 divisors (see below), whose sum is σ = 570041472. Its totient is φ = 77728896.

The previous prime is 232113127. The next prime is 232113149. The reversal of 232113140 is 41311232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232113149) 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 15 ways as a sum of consecutive naturals, for example, 13259 + ... + 25298.

It is an arithmetic number, because the mean of its divisors is an integer number (11875864).

Almost surely, 2232113140 is an apocalyptic number.

232113140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232113140 is an abundant number, since it is smaller than the sum of its proper divisors (337928332).

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

232113140 is a wasteful number, since it uses less digits than its factorization.

232113140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38616 (or 38614 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 232113140 is about 15235.2597614875. The cubic root of 232113140 is about 614.5632345152.

Adding to 232113140 its reverse (41311232), we get a palindrome (273424372).

The spelling of 232113140 in words is "two hundred thirty-two million, one hundred thirteen thousand, one hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 43 70 86 140 172 215 301 430 602 860 1204 1505 3010 6020 38557 77114 154228 192785 269899 385570 539798 771140 1079596 1349495 1657951 2698990 3315902 5397980 6631804 8289755 11605657 16579510 23211314 33159020 46422628 58028285 116056570 232113140