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115100442 = 23219336551
BaseRepresentation
bin1101101110001…
…00101100011010
322000120201010100
412313010230122
5213431203232
615231000230
72565223542
oct667045432
9260521110
10115100442
1159a75736
1232669076
131aacca92
1411402322
15a188c7c
hex6dc4b1a

115100442 has 24 divisors (see below), whose sum is σ = 262510560. Its totient is φ = 36347400.

The previous prime is 115100437. The next prime is 115100459. The reversal of 115100442 is 244001511.

It is a super-2 number, since 2×1151004422 = 26496223497190728, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 167934 + ... + 168617.

It is an arithmetic number, because the mean of its divisors is an integer number (10937940).

Almost surely, 2115100442 is an apocalyptic number.

115100442 is an abundant number, since it is smaller than the sum of its proper divisors (147410118).

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

115100442 is a wasteful number, since it uses less digits than its factorization.

115100442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336578 (or 336575 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 115100442 is about 10728.4874050353. The cubic root of 115100442 is about 486.4359498340.

Adding to 115100442 its reverse (244001511), we get a palindrome (359101953).

The spelling of 115100442 in words is "one hundred fifteen million, one hundred thousand, four hundred forty-two".

Divisors: 1 2 3 6 9 18 19 38 57 114 171 342 336551 673102 1009653 2019306 3028959 6057918 6394469 12788938 19183407 38366814 57550221 115100442