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115790538 = 23371992621
BaseRepresentation
bin1101110011011…
…01001011001010
322001212202202110
412321231023022
5214120244123
615253443150
72604126513
oct671551312
9261782673
10115790538
115a3a7166
12329404b6
131acb1c16
1411541a0a
15a273493
hex6e6d2ca

115790538 has 32 divisors (see below), whose sum is σ = 239126400. Its totient is φ = 37350720.

The previous prime is 115790497. The next prime is 115790557. The reversal of 115790538 is 835097511.

It is a junction number, because it is equal to n+sod(n) for n = 115790496 and 115790505.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42868 + ... + 45488.

It is an arithmetic number, because the mean of its divisors is an integer number (7472700).

Almost surely, 2115790538 is an apocalyptic number.

115790538 is an abundant number, since it is smaller than the sum of its proper divisors (123335862).

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

115790538 is a wasteful number, since it uses less digits than its factorization.

115790538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2862.

The product of its (nonzero) digits is 37800, while the sum is 39.

The square root of 115790538 is about 10760.6011913833. The cubic root of 115790538 is about 487.4061715542.

It can be divided in two parts, 115 and 790538, that added together give a triangular number (790653 = T1257).

The spelling of 115790538 in words is "one hundred fifteen million, seven hundred ninety thousand, five hundred thirty-eight".

Divisors: 1 2 3 6 37 74 111 199 222 398 597 1194 2621 5242 7363 7863 14726 15726 22089 44178 96977 193954 290931 521579 581862 1043158 1564737 3129474 19298423 38596846 57895269 115790538