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23120578294 = 2111187885371
BaseRepresentation
bin10101100010000110…
…000000011011110110
32012200022110001220121
4111202012000123312
5334322332001134
614342122122154
71445643446542
oct254206003366
965608401817
1023120578294
119894a66750
12459305035a
132246059378
141194918a22
15904bcbab4
hex5621806f6

23120578294 has 16 divisors (see below), whose sum is σ = 37865589696. Its totient is φ = 10500488200.

The previous prime is 23120578291. The next prime is 23120578319. The reversal of 23120578294 is 49287502132.

It is a super-2 number, since 2×231205782942 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23120578294.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23120578291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 416572 + ... + 468799.

It is an arithmetic number, because the mean of its divisors is an integer number (2366599356).

Almost surely, 223120578294 is an apocalyptic number.

23120578294 is a deficient number, since it is larger than the sum of its proper divisors (14745011402).

23120578294 is a wasteful number, since it uses less digits than its factorization.

23120578294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886571.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 23120578294 in words is "twenty-three billion, one hundred twenty million, five hundred seventy-eight thousand, two hundred ninety-four".

Divisors: 1 2 11 22 1187 2374 13057 26114 885371 1770742 9739081 19478162 1050935377 2101870754 11560289147 23120578294