Search a number
-
+
23981069686 = 2717175957283
BaseRepresentation
bin10110010101011000…
…100001010101110110
32021220021121120012011
4112111120201111312
5343103123212221
615003341314434
71506162505030
oct262530412566
967807546164
1023981069686
11a196763662
124793265a1a
1323523cba82
141236d0cc50
159555021e1
hex595621576

23981069686 has 32 divisors (see below), whose sum is σ = 43554170880. Its totient is φ = 9667368576.

The previous prime is 23981069677. The next prime is 23981069687. The reversal of 23981069686 is 68696018932.

It is a self number, because there is not a number n which added to its sum of digits gives 23981069686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23981069687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 390001 + ... + 447283.

It is an arithmetic number, because the mean of its divisors is an integer number (1361067840).

Almost surely, 223981069686 is an apocalyptic number.

23981069686 is a deficient number, since it is larger than the sum of its proper divisors (19573101194).

23981069686 is a wasteful number, since it uses less digits than its factorization.

23981069686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59068.

The product of its (nonzero) digits is 6718464, while the sum is 58.

The spelling of 23981069686 in words is "twenty-three billion, nine hundred eighty-one million, sixty-nine thousand, six hundred eighty-six".

Divisors: 1 2 7 14 17 34 119 238 1759 3518 12313 24626 29903 57283 59806 114566 209321 400981 418642 801962 973811 1947622 6816677 13633354 100760797 201521594 705325579 1410651158 1712933549 3425867098 11990534843 23981069686