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23012240115 = 3583167110681
BaseRepresentation
bin10101011011101000…
…101110101011110011
32012101202120220212110
4111123220232223303
5334112113140430
614323252100403
71443156546024
oct253350565363
965352526773
1023012240115
11983989a667
124562904703
132229786537
141184396c4b
158ea42b7b0
hex55ba2eaf3

23012240115 has 32 divisors (see below), whose sum is σ = 37486665216. Its totient is φ = 12052609280.

The previous prime is 23012240113. The next prime is 23012240129. The reversal of 23012240115 is 51104221032.

It is not a de Polignac number, because 23012240115 - 21 = 23012240113 is a prime.

It is a super-2 number, since 2×230122401152 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23012240091 and 23012240100.

It is not an unprimeable number, because it can be changed into a prime (23012240113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 152575 + ... + 263255.

It is an arithmetic number, because the mean of its divisors is an integer number (1171458288).

Almost surely, 223012240115 is an apocalyptic number.

23012240115 is a deficient number, since it is larger than the sum of its proper divisors (14474425101).

23012240115 is a wasteful number, since it uses less digits than its factorization.

23012240115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110939.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 23012240115 its reverse (51104221032), we get a palindrome (74116461147).

The spelling of 23012240115 in words is "twenty-three billion, twelve million, two hundred forty thousand, one hundred fifteen".

Divisors: 1 3 5 15 83 167 249 415 501 835 1245 2505 13861 41583 69305 110681 207915 332043 553405 1660215 9186523 18483727 27559569 45932615 55451181 92418635 137797845 277255905 1534149341 4602448023 7670746705 23012240115