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233120140 = 225111059637
BaseRepresentation
bin11011110010100…
…10000110001100
3121020122201201021
431321102012030
5434134321030
635044323524
75530326361
oct1571220614
9536581637
10233120140
1110a654680
12660a35a4
13393b2516
1422d64468
15156ec97a
hexde5218c

233120140 has 24 divisors (see below), whose sum is σ = 534057552. Its totient is φ = 84770880.

The previous prime is 233120131. The next prime is 233120161. The reversal of 233120140 is 41021332.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 529599 + ... + 530038.

It is an arithmetic number, because the mean of its divisors is an integer number (22252398).

Almost surely, 2233120140 is an apocalyptic number.

233120140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233120140 is an abundant number, since it is smaller than the sum of its proper divisors (300937412).

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

233120140 is a wasteful number, since it uses less digits than its factorization.

233120140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059657 (or 1059655 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 233120140 is about 15268.2723318652. The cubic root of 233120140 is about 615.4506930568.

Adding to 233120140 its reverse (41021332), we get a palindrome (274141472).

The spelling of 233120140 in words is "two hundred thirty-three million, one hundred twenty thousand, one hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 1059637 2119274 4238548 5298185 10596370 11656007 21192740 23312014 46624028 58280035 116560070 233120140