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23310011243 = 191226842697
BaseRepresentation
bin10101101101011000…
…101000101101101011
32020011111220021001202
4111231120220231223
5340214330324433
614413010234415
71453433553311
oct255530505553
966144807052
1023310011243
119981991502
124626585a0b
13227638397c
1411b1b4a0b1
15916649ee8
hex56d628b6b

23310011243 has 4 divisors (see below), whose sum is σ = 24536853960. Its totient is φ = 22083168528.

The previous prime is 23310011237. The next prime is 23310011317. The reversal of 23310011243 is 34211001332.

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

It is a cyclic number.

It is not a de Polignac number, because 23310011243 - 232 = 19015043947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23310011203) 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 3 ways as a sum of consecutive naturals, for example, 613421330 + ... + 613421367.

It is an arithmetic number, because the mean of its divisors is an integer number (6134213490).

Almost surely, 223310011243 is an apocalyptic number.

23310011243 is a deficient number, since it is larger than the sum of its proper divisors (1226842717).

23310011243 is a wasteful number, since it uses less digits than its factorization.

23310011243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226842716.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 23310011243 its reverse (34211001332), we get a palindrome (57521012575).

The spelling of 23310011243 in words is "twenty-three billion, three hundred ten million, eleven thousand, two hundred forty-three".

Divisors: 1 19 1226842697 23310011243