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23123210504 = 234170497593
BaseRepresentation
bin10101100010010000…
…000011000100001000
32012200111101210121212
4111202100003010020
5334324020214004
614342254352252
71446005021612
oct254220030410
965614353555
1023123210504
1198964a4329
124593abb688
13224676b4a4
141195001db2
1590504b96e
hex562403108

23123210504 has 16 divisors (see below), whose sum is σ = 44413484220. Its totient is φ = 11279614720.

The previous prime is 23123210479. The next prime is 23123210507. The reversal of 23123210504 is 40501232132.

It can be written as a sum of positive squares in 2 ways, for example, as 23119202500 + 4008004 = 152050^2 + 2002^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23123210504.

It is not an unprimeable number, because it can be changed into a prime (23123210507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35248469 + ... + 35249124.

Almost surely, 223123210504 is an apocalyptic number.

It is an amenable number.

23123210504 is a deficient number, since it is larger than the sum of its proper divisors (21290273716).

23123210504 is a wasteful number, since it uses less digits than its factorization.

23123210504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70497640 (or 70497636 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 23123210504 its reverse (40501232132), we get a palindrome (63624442636).

The spelling of 23123210504 in words is "twenty-three billion, one hundred twenty-three million, two hundred ten thousand, five hundred four".

Divisors: 1 2 4 8 41 82 164 328 70497593 140995186 281990372 563980744 2890401313 5780802626 11561605252 23123210504