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23317396493 = 471578273821
BaseRepresentation
bin10101101101110100…
…110011110000001101
32020012000210110201112
4111231310303300031
5340223223141433
614413432421405
71453553412536
oct255564636015
966160713645
1023317396493
119986076116
124628b47865
132277a6b341
1411b2b0d68d
15917108348
hex56dd33c0d

23317396493 has 16 divisors (see below), whose sum is σ = 24000447744. Its totient is φ = 22642576320.

The previous prime is 23317396489. The next prime is 23317396499. The reversal of 23317396493 is 39469371332.

It is a cyclic number.

It is not a de Polignac number, because 23317396493 - 22 = 23317396489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23317396499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6100523 + ... + 6104343.

It is an arithmetic number, because the mean of its divisors is an integer number (1500027984).

Almost surely, 223317396493 is an apocalyptic number.

It is an amenable number.

23317396493 is a deficient number, since it is larger than the sum of its proper divisors (683051251).

23317396493 is a wasteful number, since it uses less digits than its factorization.

23317396493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4852.

The product of its digits is 2204496, while the sum is 50.

The spelling of 23317396493 in words is "twenty-three billion, three hundred seventeen million, three hundred ninety-six thousand, four hundred ninety-three".

Divisors: 1 47 157 827 3821 7379 38869 129839 179587 599897 3159967 6102433 28195159 148518449 496114819 23317396493