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23213240101 = 191221749479
BaseRepresentation
bin10101100111100111…
…011110111100100101
32012220202210210000101
4111213213132330211
5340020042140401
614355232144101
71451150166562
oct254747367445
965822723011
1023213240101
1199322a5957
1245ba098031
13225c300a3c
1411a2d59869
1590cdd2101
hex5679def25

23213240101 has 4 divisors (see below), whose sum is σ = 24434989600. Its totient is φ = 21991490604.

The previous prime is 23213240093. The next prime is 23213240123. The reversal of 23213240101 is 10104231232.

It is a happy number.

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 23213240101 - 23 = 23213240093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 1221749479 = 23213240101 / (2 + 3 + 2 + 1 + 3 + 2 + 4 + 0 + 1 + 0 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23213240131) 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, 610874721 + ... + 610874758.

It is an arithmetic number, because the mean of its divisors is an integer number (6108747400).

Almost surely, 223213240101 is an apocalyptic number.

It is an amenable number.

23213240101 is a deficient number, since it is larger than the sum of its proper divisors (1221749499).

23213240101 is a wasteful number, since it uses less digits than its factorization.

23213240101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221749498.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 23213240101 its reverse (10104231232), we get a palindrome (33317471333).

The spelling of 23213240101 in words is "twenty-three billion, two hundred thirteen million, two hundred forty thousand, one hundred one".

Divisors: 1 19 1221749479 23213240101