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23434137305 = 5172311986771
BaseRepresentation
bin10101110100110010…
…001000111011011001
32020111011110112000022
4111310302020323121
5340443114343210
614433202520225
71456501611005
oct256462107331
966434415008
1023434137305
119a35a61227
124660066075
132295cc3947
1411c441b705
159224b8155
hex574c88ed9

23434137305 has 16 divisors (see below), whose sum is σ = 31069713024. Its totient is φ = 16877372160.

The previous prime is 23434137277. The next prime is 23434137313. The reversal of 23434137305 is 50373143432.

It is not a de Polignac number, because 23434137305 - 28 = 23434137049 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5991431 + ... + 5995340.

It is an arithmetic number, because the mean of its divisors is an integer number (1941857064).

Almost surely, 223434137305 is an apocalyptic number.

It is an amenable number.

23434137305 is a deficient number, since it is larger than the sum of its proper divisors (7635575719).

23434137305 is a wasteful number, since it uses less digits than its factorization.

23434137305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11986816.

The product of its (nonzero) digits is 90720, while the sum is 35.

The spelling of 23434137305 in words is "twenty-three billion, four hundred thirty-four million, one hundred thirty-seven thousand, three hundred five".

Divisors: 1 5 17 23 85 115 391 1955 11986771 59933855 203775107 275695733 1018875535 1378478665 4686827461 23434137305