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23420122165 = 5111722715437
BaseRepresentation
bin10101110011111100…
…101011010000110101
32020110012002110212001
4111303330223100311
5340431022402130
614431542255301
71456241516356
oct256374532065
966405073761
1023420122165
119a29059470
124657427531
13229312766b
1411c260dd2d
1592114a6ca
hex573f2b435

23420122165 has 48 divisors (see below), whose sum is σ = 32694822144. Its totient is φ = 15968793600.

The previous prime is 23420122111. The next prime is 23420122183. The reversal of 23420122165 is 56122102432.

It is not a de Polignac number, because 23420122165 - 29 = 23420121653 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4304827 + ... + 4310263.

It is an arithmetic number, because the mean of its divisors is an integer number (681142128).

Almost surely, 223420122165 is an apocalyptic number.

It is an amenable number.

23420122165 is a deficient number, since it is larger than the sum of its proper divisors (9274699979).

23420122165 is a wasteful number, since it uses less digits than its factorization.

23420122165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5758 (or 5741 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 23420122165 its reverse (56122102432), we get a palindrome (79542224597).

The spelling of 23420122165 in words is "twenty-three billion, four hundred twenty million, one hundred twenty-two thousand, one hundred sixty-five".

Divisors: 1 5 11 17 55 85 187 271 289 935 1355 1445 2981 3179 4607 5437 14905 15895 23035 27185 50677 59807 78319 92429 253385 299035 391595 462145 861509 1016719 1473427 1571293 4307545 5083595 7367135 7856465 16207697 17284223 25048259 81038485 86421115 125241295 275530849 425820403 1377654245 2129102015 4684024433 23420122165