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23013031033 = 349601109717
BaseRepresentation
bin10101011011101011…
…101111110001111001
32012101211002002210201
4111123223233301321
5334112313443113
614323321042201
71443166351636
oct253353576171
965354062721
1023013031033
11983a28a913
124563026361
1322299a2535
14118452118d
158ea535cdd
hex55baefc79

23013031033 has 8 divisors (see below), whose sum is σ = 23117582600. Its totient is φ = 22908700800.

The previous prime is 23013030973. The next prime is 23013031043. The reversal of 23013031033 is 33013031032.

It can be written as a sum of positive squares in 4 ways, for example, as 10534353769 + 12478677264 = 102637^2 + 111708^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23013031033 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23013031033.

It is not an unprimeable number, because it can be changed into a prime (23013031043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154891 + ... + 264607.

It is an arithmetic number, because the mean of its divisors is an integer number (2889697825).

Almost surely, 223013031033 is an apocalyptic number.

It is an amenable number.

23013031033 is a deficient number, since it is larger than the sum of its proper divisors (104551567).

23013031033 is a wasteful number, since it uses less digits than its factorization.

23013031033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110667.

The product of its (nonzero) digits is 486, while the sum is 19.

Adding to 23013031033 its reverse (33013031032), we get a palindrome (56026062065).

Subtracting 23013031033 from its reverse (33013031032), we obtain a palindrome (9999999999).

The spelling of 23013031033 in words is "twenty-three billion, thirteen million, thirty-one thousand, thirty-three".

Divisors: 1 349 601 109717 209749 38291233 65939917 23013031033