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12445242404 = 227444472943
BaseRepresentation
bin10111001011100101…
…10101010000100100
31012010022220211002212
423211302311100210
5200441440224104
65414532422552
7620255546360
oct134562652044
935108824085
1012445242404
115307018901
1224b3a77a58
131234486b7a
14860bdc2a0
154cc8be36e
hex2e5cb5424

12445242404 has 12 divisors (see below), whose sum is σ = 24890484864. Its totient is φ = 5333675304.

The previous prime is 12445242347. The next prime is 12445242437. The reversal of 12445242404 is 40424254421.

12445242404 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222236444 + ... + 222236499.

It is an arithmetic number, because the mean of its divisors is an integer number (2074207072).

Almost surely, 212445242404 is an apocalyptic number.

12445242404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12445242404 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12445242404 is a wasteful number, since it uses less digits than its factorization.

12445242404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444472954 (or 444472952 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 32.

Adding to 12445242404 its reverse (40424254421), we get a palindrome (52869496825).

The spelling of 12445242404 in words is "twelve billion, four hundred forty-five million, two hundred forty-two thousand, four hundred four".

Divisors: 1 2 4 7 14 28 444472943 888945886 1777891772 3111310601 6222621202 12445242404