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23123123202 = 2313933276599
BaseRepresentation
bin10101100010001111…
…101101110000000010
32012200111020100212110
4111202033231300002
5334324004420302
614342252440150
71446004206234
oct254217556002
965614210773
1023123123202
119896444783
124593a79056
13224673a82a
141194dbc254
15905030b6c
hex5623edc02

23123123202 has 16 divisors (see below), whose sum is σ = 46249732800. Its totient is φ = 7707126672.

The previous prime is 23123123131. The next prime is 23123123203. The reversal of 23123123202 is 20232132132.

It is a happy number.

It is a super-3 number, since 3×231231232023 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (23123123203) 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, 54702 + ... + 221897.

It is an arithmetic number, because the mean of its divisors is an integer number (2890608300).

Almost surely, 223123123202 is an apocalyptic number.

23123123202 is an abundant number, since it is smaller than the sum of its proper divisors (23126609598).

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

23123123202 is a wasteful number, since it uses less digits than its factorization.

23123123202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290537.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 23123123202 its reverse (20232132132), we get a palindrome (43355255334).

The spelling of 23123123202 in words is "twenty-three billion, one hundred twenty-three million, one hundred twenty-three thousand, two hundred two".

Divisors: 1 2 3 6 13933 27866 41799 83598 276599 553198 829797 1659594 3853853867 7707707734 11561561601 23123123202