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23154131201 = 27198515679
BaseRepresentation
bin10101100100000110…
…000000000100000001
32012202122120201211212
4111210012000010001
5334404424144301
614345321215505
71446531603455
oct254406000401
965678521755
1023154131201
1199019a3523
1245a2331595
13224cca6566
141199170665
15907b084bb
hex564180101

23154131201 has 4 divisors (see below), whose sum is σ = 23162649600. Its totient is φ = 23145612804.

The previous prime is 23154131197. The next prime is 23154131207. The reversal of 23154131201 is 10213145132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23154131201 - 22 = 23154131197 is a prime.

It is a super-2 number, since 2×231541312012 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23154131207) 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, 4255121 + ... + 4260558.

It is an arithmetic number, because the mean of its divisors is an integer number (5790662400).

Almost surely, 223154131201 is an apocalyptic number.

It is an amenable number.

23154131201 is a deficient number, since it is larger than the sum of its proper divisors (8518399).

23154131201 is an equidigital number, since it uses as much as digits as its factorization.

23154131201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8518398.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 23154131201 its reverse (10213145132), we get a palindrome (33367276333).

The spelling of 23154131201 in words is "twenty-three billion, one hundred fifty-four million, one hundred thirty-one thousand, two hundred one".

Divisors: 1 2719 8515679 23154131201