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134948560 = 2451686857
BaseRepresentation
bin10000000101100…
…10011011010000
3100101221002121211
420002302123100
5234021323220
621220225504
73226021015
oct1002623320
9311832554
10134948560
116a1a193a
123923b294
1321c5c026
1413ccb70c
15bca9b5a
hex80b26d0

134948560 has 20 divisors (see below), whose sum is σ = 313755588. Its totient is φ = 53979392.

The previous prime is 134948543. The next prime is 134948563. The reversal of 134948560 is 65849431.

It can be written as a sum of positive squares in 2 ways, for example, as 38044224 + 96904336 = 6168^2 + 9844^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×1349485602 = 36422227692147200, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134948563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 843349 + ... + 843508.

Almost surely, 2134948560 is an apocalyptic number.

134948560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134948560 is an abundant number, since it is smaller than the sum of its proper divisors (178807028).

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

134948560 is a wasteful number, since it uses less digits than its factorization.

134948560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1686870 (or 1686864 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 134948560 is about 11616.7362025657. The cubic root of 134948560 is about 512.9276193088.

The spelling of 134948560 in words is "one hundred thirty-four million, nine hundred forty-eight thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 40 80 1686857 3373714 6747428 8434285 13494856 16868570 26989712 33737140 67474280 134948560