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134719780 = 22513518153
BaseRepresentation
bin10000000011110…
…10100100100100
3100101111110210111
420001322210210
5233442013110
621211302404
73224046016
oct1001724444
9311443714
10134719780
116a055a68
123914aa04
1321babb60
1413c6c1b6
15bc61e8a
hex807a924

134719780 has 24 divisors (see below), whose sum is σ = 304674552. Its totient is φ = 49742592.

The previous prime is 134719757. The next prime is 134719787. The reversal of 134719780 is 87917431.

It can be written as a sum of positive squares in 4 ways, for example, as 2377764 + 132342016 = 1542^2 + 11504^2 .

It is not an unprimeable number, because it can be changed into a prime (134719787) 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, 258817 + ... + 259336.

It is an arithmetic number, because the mean of its divisors is an integer number (12694773).

Almost surely, 2134719780 is an apocalyptic number.

134719780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134719780 is an abundant number, since it is smaller than the sum of its proper divisors (169954772).

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

134719780 is a wasteful number, since it uses less digits than its factorization.

134719780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518175 (or 518173 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 134719780 is about 11606.8850257078. The cubic root of 134719780 is about 512.6375977952.

The spelling of 134719780 in words is "one hundred thirty-four million, seven hundred nineteen thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 518153 1036306 2072612 2590765 5181530 6735989 10363060 13471978 26943956 33679945 67359890 134719780