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117111025 = 52311371103
BaseRepresentation
bin1101111101011…
…11100011110001
322011100212010101
412332233203301
5214440023100
615342032401
72621266363
oct676574361
9264325111
10117111025
1160119279
1233278701
131b354c85
14117a6d33
15a43486a
hex6faf8f1

117111025 has 24 divisors (see below), whose sum is σ = 151133184. Its totient is φ = 89923200.

The previous prime is 117111023. The next prime is 117111061. The reversal of 117111025 is 520111711.

It is not a de Polignac number, because 117111025 - 21 = 117111023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 117110993 and 117111011.

It is not an unprimeable number, because it can be changed into a prime (117111023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105624 + ... + 106726.

It is an arithmetic number, because the mean of its divisors is an integer number (6297216).

Almost surely, 2117111025 is an apocalyptic number.

It is an amenable number.

117111025 is a deficient number, since it is larger than the sum of its proper divisors (34022159).

117111025 is a wasteful number, since it uses less digits than its factorization.

117111025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281 (or 1276 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 19.

The square root of 117111025 is about 10821.7847418991. The cubic root of 117111025 is about 489.2519823808.

Adding to 117111025 its reverse (520111711), we get a palindrome (637222736).

The spelling of 117111025 in words is "one hundred seventeen million, one hundred eleven thousand, twenty-five".

Divisors: 1 5 25 31 137 155 685 775 1103 3425 4247 5515 21235 27575 34193 106175 151111 170965 755555 854825 3777775 4684441 23422205 117111025