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102122112342 = 23191531585113
BaseRepresentation
bin101111100011011110…
…0111100010101010110
3100202121001202211010010
41133012330330111112
53133121230043332
6114525251141050
710243452426645
oct1370674742526
9322531684103
10102122112342
113a3452a7558
12179605a4786
139826370313
144d2ac2535c
1529ca6bd9cc
hex17c6f3c556

102122112342 has 32 divisors (see below), whose sum is σ = 215134715520. Its totient is φ = 32227968960.

The previous prime is 102122112341. The next prime is 102122112349. The reversal of 102122112342 is 243211221201.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102122112341) 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, 118023 + ... + 467090.

It is an arithmetic number, because the mean of its divisors is an integer number (6722959860).

Almost surely, 2102122112342 is an apocalyptic number.

102122112342 is an abundant number, since it is smaller than the sum of its proper divisors (113012603178).

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

102122112342 is a wasteful number, since it uses less digits than its factorization.

102122112342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586668.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 102122112342 its reverse (243211221201), we get a palindrome (345333333543).

The spelling of 102122112342 in words is "one hundred two billion, one hundred twenty-two million, one hundred twelve thousand, three hundred forty-two".

Divisors: 1 2 3 6 19 38 57 114 1531 3062 4593 9186 29089 58178 87267 174534 585113 1170226 1755339 3510678 11117147 22234294 33351441 66702882 895808003 1791616006 2687424009 5374848018 17020352057 34040704114 51061056171 102122112342