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133124120 = 23521115773
BaseRepresentation
bin1111110111101…
…01000000011000
3100021111101221222
413323311000120
5233034432440
621113151212
73204351653
oct773650030
9307441858
10133124120
1169166138
12386bb508
132177078c
141397489a
15ba492b5
hex7ef5018

133124120 has 32 divisors (see below), whose sum is σ = 300967920. Its totient is φ = 52993920.

The previous prime is 133124107. The next prime is 133124191. The reversal of 133124120 is 21421331.

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, 554 + ... + 16326.

Almost surely, 2133124120 is an apocalyptic number.

133124120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133124120 is an abundant number, since it is smaller than the sum of its proper divisors (167843800).

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

133124120 is a wasteful number, since it uses less digits than its factorization.

133124120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15995 (or 15991 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 133124120 is about 11537.9426242290. The cubic root of 133124120 is about 510.6056114662.

Adding to 133124120 its reverse (21421331), we get a palindrome (154545451).

The spelling of 133124120 in words is "one hundred thirty-three million, one hundred twenty-four thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 211 422 844 1055 1688 2110 4220 8440 15773 31546 63092 78865 126184 157730 315460 630920 3328103 6656206 13312412 16640515 26624824 33281030 66562060 133124120