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23102211320 = 2351697340339
BaseRepresentation
bin10101100000111111…
…111100010011111000
32012122000212221011022
4111200333330103320
5334303131230240
614340224322012
71445331361526
oct254077742370
965560787138
1023102211320
119885661331
124588a73308
1322422c8336
1411922d7316
1590329e9b5
hex560ffc4f8

23102211320 has 32 divisors (see below), whose sum is σ = 52010758800. Its totient is φ = 9235411968.

The previous prime is 23102211311. The next prime is 23102211343. The reversal of 23102211320 is 2311220132.

It is a super-2 number, since 2×231022113202 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102290 + ... + 238049.

Almost surely, 223102211320 is an apocalyptic number.

23102211320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23102211320 is an abundant number, since it is smaller than the sum of its proper divisors (28908547480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23102211320 is a wasteful number, since it uses less digits than its factorization.

23102211320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342047 (or 342043 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 23102211320 its reverse (2311220132), we get a palindrome (25413431452).

The spelling of 23102211320 in words is "twenty-three billion, one hundred two million, two hundred eleven thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 1697 3394 6788 8485 13576 16970 33940 67880 340339 680678 1361356 1701695 2722712 3403390 6806780 13613560 577555283 1155110566 2310221132 2887776415 4620442264 5775552830 11551105660 23102211320