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23055016531 = 171356177443
BaseRepresentation
bin10101011110001011…
…111010001001010011
32012111202002012002011
4111132023322021103
5334204041012111
614331421003351
71444216256431
oct253613721123
965452065064
1023055016531
119860a57178
1245750b3557
1322355b2a21
141189d2dd51
158ee07b021
hex55e2fa253

23055016531 has 4 divisors (see below), whose sum is σ = 24411193992. Its totient is φ = 21698839072.

The previous prime is 23055016519. The next prime is 23055016547. The reversal of 23055016531 is 13561055032.

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 23055016531 - 27 = 23055016403 is a prime.

It is a super-2 number, since 2×230550165312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23055016493 and 23055016502.

It is not an unprimeable number, because it can be changed into a prime (23055016511) 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, 678088705 + ... + 678088738.

It is an arithmetic number, because the mean of its divisors is an integer number (6102798498).

Almost surely, 223055016531 is an apocalyptic number.

23055016531 is a deficient number, since it is larger than the sum of its proper divisors (1356177461).

23055016531 is a wasteful number, since it uses less digits than its factorization.

23055016531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356177460.

The product of its (nonzero) digits is 13500, while the sum is 31.

The spelling of 23055016531 in words is "twenty-three billion, fifty-five million, sixteen thousand, five hundred thirty-one".

Divisors: 1 17 1356177443 23055016531