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115195770 = 2345142217
BaseRepresentation
bin1101101110110…
…11111101111010
322000202112220000
412313123331322
5213442231040
615233013430
72566101504
oct667337572
9260675800
10115195770
115a030318
12326b4276
131ab342a1
1411428d74
15a1a7130
hex6ddbf7a

115195770 has 40 divisors (see below), whose sum is σ = 309750804. Its totient is φ = 30718656.

The previous prime is 115195747. The next prime is 115195771. The reversal of 115195770 is 77591511.

It can be written as a sum of positive squares in 2 ways, for example, as 108430569 + 6765201 = 10413^2 + 2601^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (115195771) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 70299 + ... + 71918.

Almost surely, 2115195770 is an apocalyptic number.

115195770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115195770 is an abundant number, since it is smaller than the sum of its proper divisors (194555034).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115195770 is a wasteful number, since it uses less digits than its factorization.

115195770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142236 (or 142227 counting only the distinct ones).

The product of its (nonzero) digits is 11025, while the sum is 36.

The square root of 115195770 is about 10732.9292366996. The cubic root of 115195770 is about 486.5702040835.

The spelling of 115195770 in words is "one hundred fifteen million, one hundred ninety-five thousand, seven hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 270 405 810 142217 284434 426651 711085 853302 1279953 1422170 2133255 2559906 3839859 4266510 6399765 7679718 11519577 12799530 19199295 23039154 38398590 57597885 115195770