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123020092 = 221317317439
BaseRepresentation
bin1110101010100…
…10001100111100
322120111001211201
413111102030330
5222443120332
620112425244
73022440106
oct725221474
9276431751
10123020092
11634948a8
1235248224
131c643770
14124a4576
15ac005e7
hex755233c

123020092 has 48 divisors (see below), whose sum is σ = 246818880. Its totient is φ = 53148672.

The previous prime is 123020087. The next prime is 123020099. The reversal of 123020092 is 290020321.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123020099) 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, 280009 + ... + 280447.

It is an arithmetic number, because the mean of its divisors is an integer number (5142060).

Almost surely, 2123020092 is an apocalyptic number.

It is an amenable number.

123020092 is an abundant number, since it is smaller than the sum of its proper divisors (123798788).

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

123020092 is a wasteful number, since it uses less digits than its factorization.

123020092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790 (or 788 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 123020092 is about 11091.4422867362. The cubic root of 123020092 is about 497.3460608038.

The spelling of 123020092 in words is "one hundred twenty-three million, twenty thousand, ninety-two".

Divisors: 1 2 4 13 17 26 34 52 68 221 317 439 442 634 878 884 1268 1756 4121 5389 5707 7463 8242 10778 11414 14926 16484 21556 22828 29852 70057 97019 139163 140114 194038 278326 280228 388076 556652 1809119 2365771 3618238 4731542 7236476 9463084 30755023 61510046 123020092