Search a number
-
+
23829131115 = 3251771438721
BaseRepresentation
bin10110001100010100…
…111010111101101011
32021111200201021122200
4112030110322331223
5342300224143430
614540312551243
71502336162316
oct261424727553
967450637580
1023829131115
11a118a17999
1247503b2523
132329aa16aa
141220a7b97d
15946edd460
hex58c53af6b

23829131115 has 48 divisors (see below), whose sum is σ = 44349529536. Its totient is φ = 11792793600.

The previous prime is 23829131113. The next prime is 23829131129. The reversal of 23829131115 is 51113192832.

It is not a de Polignac number, because 23829131115 - 21 = 23829131113 is a prime.

It is a super-2 number, since 2×238291311152 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23829131115.

It is not an unprimeable number, because it can be changed into a prime (23829131111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 165046 + ... + 273675.

It is an arithmetic number, because the mean of its divisors is an integer number (923948532).

Almost surely, 223829131115 is an apocalyptic number.

23829131115 is a deficient number, since it is larger than the sum of its proper divisors (20520398421).

23829131115 is a wasteful number, since it uses less digits than its factorization.

23829131115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438820 (or 438817 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The spelling of 23829131115 in words is "twenty-three billion, eight hundred twenty-nine million, one hundred thirty-one thousand, one hundred fifteen".

Divisors: 1 3 5 9 15 17 45 51 71 85 153 213 255 355 639 765 1065 1207 3195 3621 6035 10863 18105 54315 438721 1316163 2193605 3948489 6580815 7458257 19742445 22374771 31149191 37291285 67124313 93447573 111873855 155745955 280342719 335621565 467237865 529536247 1401713595 1588608741 2647681235 4765826223 7943043705 23829131115