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115089689 = 1113804823
BaseRepresentation
bin1101101110000…
…10000100011001
322000120011101002
412313002010121
5213430332224
615230434345
72565150311
oct667020431
9260504332
10115089689
1159a68650
12326629b5
131aac7c10
14113dc441
15a1859ae
hex6dc2119

115089689 has 8 divisors (see below), whose sum is σ = 135210432. Its totient is φ = 96578640.

The previous prime is 115089671. The next prime is 115089743. The reversal of 115089689 is 986980511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115089689 - 220 = 114041113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115089089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 402269 + ... + 402554.

It is an arithmetic number, because the mean of its divisors is an integer number (16901304).

Almost surely, 2115089689 is an apocalyptic number.

It is an amenable number.

115089689 is a deficient number, since it is larger than the sum of its proper divisors (20120743).

115089689 is a wasteful number, since it uses less digits than its factorization.

115089689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804847.

The product of its (nonzero) digits is 155520, while the sum is 47.

The square root of 115089689 is about 10727.9862509233. The cubic root of 115089689 is about 486.4208013006.

The spelling of 115089689 in words is "one hundred fifteen million, eighty-nine thousand, six hundred eighty-nine".

Divisors: 1 11 13 143 804823 8853053 10462699 115089689