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23312213033 = 172179450643
BaseRepresentation
bin10101101101100001…
…000010010000101001
32020011200001010100112
4111231201002100221
5340220411304113
614413125344105
71453461353444
oct255541022051
966150033315
1023312213033
11998315576a
124627268035
132276974bc5
1411b216065b
159169325a8
hex56d842429

23312213033 has 12 divisors (see below), whose sum is σ = 24902587440. Its totient is φ = 21818283072.

The previous prime is 23312212901. The next prime is 23312213069. The reversal of 23312213033 is 33031221332.

It is not a de Polignac number, because 23312213033 - 222 = 23308018729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23312213633) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 173591 + ... + 277052.

It is an arithmetic number, because the mean of its divisors is an integer number (2075215620).

Almost surely, 223312213033 is an apocalyptic number.

It is an amenable number.

23312213033 is a deficient number, since it is larger than the sum of its proper divisors (1590374407).

23312213033 is a wasteful number, since it uses less digits than its factorization.

23312213033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450856 (or 450839 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 23312213033 its reverse (33031221332), we get a palindrome (56343434365).

The spelling of 23312213033 in words is "twenty-three billion, three hundred twelve million, two hundred thirteen thousand, thirty-three".

Divisors: 1 17 179 289 3043 51731 450643 7660931 80665097 130235827 1371306649 23312213033