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23201321423 = 725931127819
BaseRepresentation
bin10101100110111010…
…000001000111001111
32012212221101020122212
4111212322001013033
5340004014241143
614354124501035
71450643656340
oct254672010717
965787336585
1023201321423
1199265a5205
1245b60aa77b
1322599b9a77
1411a15360c7
1590bd2a918
hex566e811cf

23201321423 has 8 divisors (see below), whose sum is σ = 26517025920. Its totient is φ = 19885924440.

The previous prime is 23201321411. The next prime is 23201321447. The reversal of 23201321423 is 32412310232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23201321423 - 28 = 23201321167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23201324423) 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, 117608 + ... + 245426.

It is an arithmetic number, because the mean of its divisors is an integer number (3314628240).

Almost surely, 223201321423 is an apocalyptic number.

23201321423 is a deficient number, since it is larger than the sum of its proper divisors (3315704497).

23201321423 is a wasteful number, since it uses less digits than its factorization.

23201321423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153757.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 23201321423 its reverse (32412310232), we get a palindrome (55613631655).

The spelling of 23201321423 in words is "twenty-three billion, two hundred one million, three hundred twenty-one thousand, four hundred twenty-three".

Divisors: 1 7 25931 127819 181517 894733 3314474489 23201321423