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134306720 = 2551974261
BaseRepresentation
bin10000000000101…
…01101110100000
3100100201111011222
420000111232200
5233340303340
621154354212
73220405532
oct1000255640
9310644158
10134306720
11698a3699
1238b8b968
1321a95b42
1413ba1852
15bbce8b5
hex8015ba0

134306720 has 48 divisors (see below), whose sum is σ = 318985128. Its totient is φ = 53437440.

The previous prime is 134306719. The next prime is 134306723. The reversal of 134306720 is 27603431.

It can be written as a sum of positive squares in 4 ways, for example, as 130965136 + 3341584 = 11444^2 + 1828^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 134306720.

It is not an unprimeable number, because it can be changed into a prime (134306723) 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, 29390 + ... + 33650.

Almost surely, 2134306720 is an apocalyptic number.

134306720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134306720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159492564).

134306720 is an abundant number, since it is smaller than the sum of its proper divisors (184678408).

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

134306720 is a wasteful number, since it uses less digits than its factorization.

134306720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4473 (or 4465 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 134306720 is about 11589.0776164456. The cubic root of 134306720 is about 512.1131341791.

The spelling of 134306720 in words is "one hundred thirty-four million, three hundred six thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 197 394 788 985 1576 1970 3152 3940 4261 6304 7880 8522 15760 17044 21305 31520 34088 42610 68176 85220 136352 170440 340880 681760 839417 1678834 3357668 4197085 6715336 8394170 13430672 16788340 26861344 33576680 67153360 134306720