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10122302142 = 2321314292749
BaseRepresentation
bin10010110110101011…
…00001001010111110
3222010102220020010100
421123111201022332
5131212302132032
64352232021530
7505561101651
oct113325411276
928112806110
1010122302142
114324859467
121b65b318a6
13c5413c1c4
146c04bb898
153e39ba97c
hex25b5612be

10122302142 has 24 divisors (see below), whose sum is σ = 22099077000. Its totient is φ = 3348343440.

The previous prime is 10122302131. The next prime is 10122302161. The reversal of 10122302142 is 24120322101.

It is a happy number.

It is a super-2 number, since 2×101223021422 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2144017 + ... + 2148732.

It is an arithmetic number, because the mean of its divisors is an integer number (920794875).

Almost surely, 210122302142 is an apocalyptic number.

10122302142 is an abundant number, since it is smaller than the sum of its proper divisors (11976774858).

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

10122302142 is a wasteful number, since it uses less digits than its factorization.

10122302142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4292888 (or 4292885 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 10122302142 its reverse (24120322101), we get a palindrome (34242624243).

The spelling of 10122302142 in words is "ten billion, one hundred twenty-two million, three hundred two thousand, one hundred forty-two".

Divisors: 1 2 3 6 9 18 131 262 393 786 1179 2358 4292749 8585498 12878247 25756494 38634741 77269482 562350119 1124700238 1687050357 3374100714 5061151071 10122302142