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133466680 = 2356749801
BaseRepresentation
bin1111111010010…
…00101000111000
3100022010210212101
413331020220320
5233131413210
621124353144
73210306454
oct775105070
9308123771
10133466680
116937a546
12388457b4
1321860689
1413a23664
15bab5a3a
hex7f48a38

133466680 has 32 divisors (see below), whose sum is σ = 304788240. Its totient is φ = 52588800.

The previous prime is 133466657. The next prime is 133466681. The reversal of 133466680 is 86664331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133466681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22221 + ... + 27580.

Almost surely, 2133466680 is an apocalyptic number.

133466680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133466680 is an abundant number, since it is smaller than the sum of its proper divisors (171321560).

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

133466680 is a wasteful number, since it uses less digits than its factorization.

133466680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49879 (or 49875 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 133466680 is about 11552.7780208918. The cubic root of 133466680 is about 511.0432061996.

The spelling of 133466680 in words is "one hundred thirty-three million, four hundred sixty-six thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 67 134 268 335 536 670 1340 2680 49801 99602 199204 249005 398408 498010 996020 1992040 3336667 6673334 13346668 16683335 26693336 33366670 66733340 133466680