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133627640 = 2353340691
BaseRepresentation
bin1111111011011…
…11111011111000
3100022102222122212
413331233323320
5233202041030
621132034252
73211546646
oct775577370
9308388585
10133627640
116947a473
1238902988
13218b8a13
1413a66196
15bae8595
hex7f6fef8

133627640 has 16 divisors (see below), whose sum is σ = 300662280. Its totient is φ = 53451040.

The previous prime is 133627619. The next prime is 133627657. The reversal of 133627640 is 46726331.

It is a junction number, because it is equal to n+sod(n) for n = 133627597 and 133627606.

It is a congruent 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, 1670306 + ... + 1670385.

Almost surely, 2133627640 is an apocalyptic number.

133627640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133627640 is an abundant number, since it is smaller than the sum of its proper divisors (167034640).

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

133627640 is a wasteful number, since it uses less digits than its factorization.

133627640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3340702 (or 3340698 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 133627640 is about 11559.7422116585. The cubic root of 133627640 is about 511.2485619964.

The spelling of 133627640 in words is "one hundred thirty-three million, six hundred twenty-seven thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 20 40 3340691 6681382 13362764 16703455 26725528 33406910 66813820 133627640