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126163420 = 22519332009
BaseRepresentation
bin1111000010100…
…01100111011100
322210101202200021
413201101213130
5224244212140
620304041524
73061241245
oct741214734
9283352607
10126163420
1165241499
12363032a4
13201a4416
1412a81ccc
15b121b4a
hex78519dc

126163420 has 24 divisors (see below), whose sum is σ = 278888400. Its totient is φ = 47809152.

The previous prime is 126163399. The next prime is 126163447. The reversal of 126163420 is 24361621.

It is a congruent number.

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, 165625 + ... + 166384.

It is an arithmetic number, because the mean of its divisors is an integer number (11620350).

Almost surely, 2126163420 is an apocalyptic number.

126163420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126163420 is an abundant number, since it is smaller than the sum of its proper divisors (152724980).

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

126163420 is a wasteful number, since it uses less digits than its factorization.

126163420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332037 (or 332035 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 126163420 is about 11232.2491069242. The cubic root of 126163420 is about 501.5464387898.

The spelling of 126163420 in words is "one hundred twenty-six million, one hundred sixty-three thousand, four hundred twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 332009 664018 1328036 1660045 3320090 6308171 6640180 12616342 25232684 31540855 63081710 126163420