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130739642 = 21173127641
BaseRepresentation
bin1111100101011…
…10110110111010
3100010000021001222
413302232312322
5231432132032
620550112042
73145161065
oct762566672
9303007058
10130739642
11678876a0
123794b622
1321117347
14135138dc
15b727a12
hex7caedba

130739642 has 32 divisors (see below), whose sum is σ = 218916864. Its totient is φ = 58060800.

The previous prime is 130739593. The next prime is 130739663. The reversal of 130739642 is 246937031.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203642 + ... + 204282.

It is an arithmetic number, because the mean of its divisors is an integer number (6841152).

Almost surely, 2130739642 is an apocalyptic number.

130739642 is a deficient number, since it is larger than the sum of its proper divisors (88177222).

130739642 is a wasteful number, since it uses less digits than its factorization.

130739642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 130739642 is about 11434.1436933423. The cubic root of 130739642 is about 507.5386230888.

The spelling of 130739642 in words is "one hundred thirty million, seven hundred thirty-nine thousand, six hundred forty-two".

Divisors: 1 2 11 22 73 127 146 254 641 803 1282 1397 1606 2794 7051 9271 14102 18542 46793 81407 93586 101981 162814 203962 514723 895477 1029446 1790954 5942711 11885422 65369821 130739642