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23521430141 = 113176190641
BaseRepresentation
bin10101111001111111…
…001000101001111101
32020201020201110021022
4111321333020221331
5341132441231031
614450001513525
71461611600036
oct257177105175
966636643238
1023521430141
119a80263670
1246853428a5
1322ab108601
1411d1c61a8d
15929eac97b
hex579fc8a7d

23521430141 has 16 divisors (see below), whose sum is σ = 26522574336. Its totient is φ = 20665920000.

The previous prime is 23521430131. The next prime is 23521430161. The reversal of 23521430141 is 14103412532.

It is a happy number.

It is not a de Polignac number, because 23521430141 - 26 = 23521430077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23521430141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23521430111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214181 + ... + 304821.

It is an arithmetic number, because the mean of its divisors is an integer number (1657660896).

Almost surely, 223521430141 is an apocalyptic number.

It is an amenable number.

23521430141 is a deficient number, since it is larger than the sum of its proper divisors (3001144195).

23521430141 is a wasteful number, since it uses less digits than its factorization.

23521430141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91444.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 23521430141 its reverse (14103412532), we get a palindrome (37624842673).

The spelling of 23521430141 in words is "twenty-three billion, five hundred twenty-one million, four hundred thirty thousand, one hundred forty-one".

Divisors: 1 11 31 341 761 8371 23591 90641 259501 997051 2809871 30908581 68977801 758755811 2138311831 23521430141