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12485418090 = 2351507327611
BaseRepresentation
bin10111010000011000…
…00101110001101010
31012020010111221210020
423220030011301222
5201032231334330
65422525501310
7621254205555
oct135014056152
935203457706
1012485418090
115327769452
122505411836
13123c8b2672
1486629969c
154d11a8210
hex2e8305c6a

12485418090 has 32 divisors (see below), whose sum is σ = 29968076736. Its totient is φ = 3329103360.

The previous prime is 12485418083. The next prime is 12485418097. The reversal of 12485418090 is 9081458421.

It is an interprime number because it is at equal distance from previous prime (12485418083) and next prime (12485418097).

It is not an unprimeable number, because it can be changed into a prime (12485418097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 438385 + ... + 465995.

It is an arithmetic number, because the mean of its divisors is an integer number (936502398).

Almost surely, 212485418090 is an apocalyptic number.

12485418090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12485418090 is an abundant number, since it is smaller than the sum of its proper divisors (17482658646).

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

12485418090 is a wasteful number, since it uses less digits than its factorization.

12485418090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42694.

The product of its (nonzero) digits is 92160, while the sum is 42.

The spelling of 12485418090 in words is "twelve billion, four hundred eighty-five million, four hundred eighteen thousand, ninety".

Divisors: 1 2 3 5 6 10 15 30 15073 27611 30146 45219 55222 75365 82833 90438 138055 150730 165666 226095 276110 414165 452190 828330 416180603 832361206 1248541809 2080903015 2497083618 4161806030 6242709045 12485418090