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134885920 = 2551364849
BaseRepresentation
bin10000000101000…
…11001000100000
3100101210220200211
420002203020200
5234012322140
621215023504
73225340261
oct1002431040
9311726624
10134885920
116a159874
123920ab94
1321c39670
1413cb2968
15bc962ea
hex80a3220

134885920 has 48 divisors (see below), whose sum is σ = 343186200. Its totient is φ = 49803264.

The previous prime is 134885917. The next prime is 134885951. The reversal of 134885920 is 29588431.

It can be written as a sum of positive squares in 4 ways, for example, as 80066704 + 54819216 = 8948^2 + 7404^2 .

It is a super-2 number, since 2×1348859202 = 36388422828492800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30345 + ... + 34504.

Almost surely, 2134885920 is an apocalyptic number.

134885920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134885920 is an abundant number, since it is smaller than the sum of its proper divisors (208300280).

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

134885920 is a wasteful number, since it uses less digits than its factorization.

134885920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64877 (or 64869 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 134885920 is about 11614.0397795082. The cubic root of 134885920 is about 512.8482439807.

The spelling of 134885920 in words is "one hundred thirty-four million, eight hundred eighty-five thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 13 16 20 26 32 40 52 65 80 104 130 160 208 260 416 520 1040 2080 64849 129698 259396 324245 518792 648490 843037 1037584 1296980 1686074 2075168 2593960 3372148 4215185 5187920 6744296 8430370 10375840 13488592 16860740 26977184 33721480 67442960 134885920