Search a number
-
+
115207983 = 32111163717
BaseRepresentation
bin1101101110111…
…10111100101111
322000210011122100
412313132330233
5213443123413
615233150143
72566152222
oct667367457
9260704570
10115207983
115a039510
12326bb353
131ab39a07
141142d5b9
15a1aaa73
hex6ddef2f

115207983 has 12 divisors (see below), whose sum is σ = 181540008. Its totient is φ = 69822960.

The previous prime is 115207979. The next prime is 115207987. The reversal of 115207983 is 389702511.

It is an interprime number because it is at equal distance from previous prime (115207979) and next prime (115207987).

It is not a de Polignac number, because 115207983 - 22 = 115207979 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115207987) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 581760 + ... + 581957.

It is an arithmetic number, because the mean of its divisors is an integer number (15128334).

Almost surely, 2115207983 is an apocalyptic number.

115207983 is a deficient number, since it is larger than the sum of its proper divisors (66332025).

115207983 is a wasteful number, since it uses less digits than its factorization.

115207983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163734 (or 1163731 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 115207983 is about 10733.4981716121. The cubic root of 115207983 is about 486.5873987887.

It can be divided in two parts, 11520 and 7983, that added together give a triangular number (19503 = T197).

The spelling of 115207983 in words is "one hundred fifteen million, two hundred seven thousand, nine hundred eighty-three".

Divisors: 1 3 9 11 33 99 1163717 3491151 10473453 12800887 38402661 115207983