Search a number
-
+
787020130 = 25136054001
BaseRepresentation
bin101110111010001…
…111100101100010
32000211220202122201
4232322033211202
53102434121010
6210032323414
725334363221
oct5672174542
92024822581
10787020130
11374285966
1219b6a356a
13c7089bb0
147674acb8
154916123a
hex2ee8f962

787020130 has 16 divisors (see below), whose sum is σ = 1525608504. Its totient is φ = 290592000.

The previous prime is 787020127. The next prime is 787020131. The reversal of 787020130 is 31020787.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 724309569 + 62710561 = 26913^2 + 7919^2 .

It is not an unprimeable number, because it can be changed into a prime (787020131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3026871 + ... + 3027130.

Almost surely, 2787020130 is an apocalyptic number.

787020130 is a deficient number, since it is larger than the sum of its proper divisors (738588374).

787020130 is a wasteful number, since it uses less digits than its factorization.

787020130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6054021.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 787020130 is about 28053.8790544196. The cubic root of 787020130 is about 923.2697648402.

The spelling of 787020130 in words is "seven hundred eighty-seven million, twenty thousand, one hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 6054001 12108002 30270005 60540010 78702013 157404026 393510065 787020130