Search a number
-
+
23115112213105 = 51189233169311971
BaseRepresentation
bin1010100000101111010000…
…00011010110101001110001
310000211210010220200002111001
411100113220003112221301
511012204222211304410
6121054534055522001
74604004012653563
oct520275003265161
9100753126602431
1023115112213105
117402078264230
122713a44389301
13cb899049abb3
1459cac5289333
152a14253e233a
hex1505e80d6a71

23115112213105 has 64 divisors (see below), whose sum is σ = 30751830869760. Its totient is φ = 16539605913600.

The previous prime is 23115112213031. The next prime is 23115112213133. The reversal of 23115112213105 is 50131221151132.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-23115112213105 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1930919770 + ... + 1930931740.

It is an arithmetic number, because the mean of its divisors is an integer number (480497357340).

Almost surely, 223115112213105 is an apocalyptic number.

It is an amenable number.

23115112213105 is a deficient number, since it is larger than the sum of its proper divisors (7636718656655).

23115112213105 is a wasteful number, since it uses less digits than its factorization.

23115112213105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14002.

The product of its (nonzero) digits is 1800, while the sum is 28.

Adding to 23115112213105 its reverse (50131221151132), we get a palindrome (73246333364237).

The spelling of 23115112213105 in words is "twenty-three trillion, one hundred fifteen billion, one hundred twelve million, two hundred thirteen thousand, one hundred five".

Divisors: 1 5 11 55 89 233 445 979 1165 1693 2563 4895 8465 11971 12815 18623 20737 59855 93115 103685 131681 150677 228107 394469 658405 753385 1065419 1140535 1657447 1972345 2789243 4339159 5327095 8287235 11719609 13946215 20266903 21695795 30681673 35107741 58598045 101334515 153408365 175538705 222935933 248242627 386185151 1114679665 1241213135 1803754367 1930925755 2730668897 4722188399 9018771835 13653344485 19841298037 23610941995 51944072389 99206490185 259720361945 420274767511 2101373837555 4623022442621 23115112213105