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23061353501 = 25789732893
BaseRepresentation
bin10101011110100100…
…000101010000011101
32012112012000010202202
4111132210011100131
5334212201303001
614332204501245
71444324161524
oct253644052035
965465003682
1023061353501
11986459523a
12457724a825
1322369c1204
14118aadd4bb
158ee8cd96b
hex55e90541d

23061353501 has 4 divisors (see below), whose sum is σ = 23151086652. Its totient is φ = 22971620352.

The previous prime is 23061353477. The next prime is 23061353509. The reversal of 23061353501 is 10535316032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17842013476 + 5219340025 = 133574^2 + 72245^2 .

It is a cyclic number.

It is not a de Polignac number, because 23061353501 - 230 = 21987611677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23061353509) 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, 44866190 + ... + 44866703.

It is an arithmetic number, because the mean of its divisors is an integer number (5787771663).

Almost surely, 223061353501 is an apocalyptic number.

It is an amenable number.

23061353501 is a deficient number, since it is larger than the sum of its proper divisors (89733151).

23061353501 is an equidigital number, since it uses as much as digits as its factorization.

23061353501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89733150.

The product of its (nonzero) digits is 8100, while the sum is 29.

Adding to 23061353501 its reverse (10535316032), we get a palindrome (33596669533).

The spelling of 23061353501 in words is "twenty-three billion, sixty-one million, three hundred fifty-three thousand, five hundred one".

Divisors: 1 257 89732893 23061353501