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115284140 = 22517339071
BaseRepresentation
bin1101101111100…
…01100010101100
322000221001002222
412313301202230
5214003043030
615234534512
72566620236
oct667614254
9260831088
10115284140
115a090754
1232737438
131ab6558a
141144d256
15a1c33e5
hex6df18ac

115284140 has 24 divisors (see below), whose sum is σ = 256338432. Its totient is φ = 43400960.

The previous prime is 115284137. The next prime is 115284163. The reversal of 115284140 is 41482511.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169196 + ... + 169875.

It is an arithmetic number, because the mean of its divisors is an integer number (10680768).

Almost surely, 2115284140 is an apocalyptic number.

115284140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115284140 is an abundant number, since it is smaller than the sum of its proper divisors (141054292).

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

115284140 is a wasteful number, since it uses less digits than its factorization.

115284140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339097 (or 339095 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 115284140 is about 10737.0452173771. The cubic root of 115284140 is about 486.6945929639.

The spelling of 115284140 in words is "one hundred fifteen million, two hundred eighty-four thousand, one hundred forty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 339071 678142 1356284 1695355 3390710 5764207 6781420 11528414 23056828 28821035 57642070 115284140