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42312032140 = 22572192272397
BaseRepresentation
bin100111011001111111…
…100101111110001100
311001012210112221100111
4213121333211332030
51143123340012030
631234325405404
73025350224200
oct473177457614
9131183487314
1042312032140
1116a43048004
12824a269864
133cb407b211
14209568cb00
15117998362a
hex9d9fe5f8c

42312032140 has 72 divisors (see below), whose sum is σ = 108802416240. Its totient is φ = 13743451008.

The previous prime is 42312032093. The next prime is 42312032143. The reversal of 42312032140 is 4123021324.

It is not an unprimeable number, because it can be changed into a prime (42312032143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1117579 + ... + 1154818.

It is an arithmetic number, because the mean of its divisors is an integer number (1511144670).

Almost surely, 242312032140 is an apocalyptic number.

It is an amenable number.

42312032140 is an abundant number, since it is smaller than the sum of its proper divisors (66490384100).

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

42312032140 is a wasteful number, since it uses less digits than its factorization.

42312032140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2272439 (or 2272430 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 42312032140 its reverse (4123021324), we get a palindrome (46435053464).

The spelling of 42312032140 in words is "forty-two billion, three hundred twelve million, thirty-two thousand, one hundred forty".

Divisors: 1 2 4 5 7 10 14 19 20 28 35 38 49 70 76 95 98 133 140 190 196 245 266 380 490 532 665 931 980 1330 1862 2660 3724 4655 9310 18620 2272397 4544794 9089588 11361985 15906779 22723970 31813558 43175543 45447940 63627116 79533895 86351086 111347453 159067790 172702172 215877715 222694906 302228801 318135580 431755430 445389812 556737265 604457602 863510860 1113474530 1208915204 1511144005 2115601607 2226949060 3022288010 4231203214 6044576020 8462406428 10578008035 21156016070 42312032140