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129062226 = 23127169373
BaseRepresentation
bin1111011000101…
…01010101010010
322222212001002110
413230111111102
5231014442401
620450130150
73125003466
oct754252522
9288761073
10129062226
11669413a7
1237280956
132097a9a7
14131d84a6
15b4e59d6
hex7b15552

129062226 has 16 divisors (see below), whose sum is σ = 260158464. Its totient is φ = 42681744.

The previous prime is 129062183. The next prime is 129062237. The reversal of 129062226 is 622260921.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 129062193 and 129062202.

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, 83925 + ... + 85448.

It is an arithmetic number, because the mean of its divisors is an integer number (16259904).

Almost surely, 2129062226 is an apocalyptic number.

129062226 is an abundant number, since it is smaller than the sum of its proper divisors (131096238).

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

129062226 is a wasteful number, since it uses less digits than its factorization.

129062226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169505.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 129062226 is about 11360.5557082389. Note that the first 3 decimals coincide. The cubic root of 129062226 is about 505.3586655723.

The spelling of 129062226 in words is "one hundred twenty-nine million, sixty-two thousand, two hundred twenty-six".

Divisors: 1 2 3 6 127 254 381 762 169373 338746 508119 1016238 21510371 43020742 64531113 129062226