Search a number
-
+
61739682 = 23172326317
BaseRepresentation
bin1110101110000…
…1001010100010
311022011200220220
43223201022202
5111301132212
610043143510
71346531034
oct353411242
9138150826
1061739682
1131939a34
1218814b96
13ca38a74
1482b1c54
15564838c
hex3ae12a2

61739682 has 32 divisors (see below), whose sum is σ = 136432512. Its totient is φ = 18526464.

The previous prime is 61739681. The next prime is 61739707. The reversal of 61739682 is 28693716.

It is a happy number.

It is a super-2 number, since 2×617396822 = 7623576666922248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61739681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10813 + ... + 15504.

It is an arithmetic number, because the mean of its divisors is an integer number (4263516).

Almost surely, 261739682 is an apocalyptic number.

61739682 is an abundant number, since it is smaller than the sum of its proper divisors (74692830).

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

61739682 is a wasteful number, since it uses less digits than its factorization.

61739682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26362.

The product of its digits is 108864, while the sum is 42.

The square root of 61739682 is about 7857.4602767052. The cubic root of 61739682 is about 395.2344535587.

The spelling of 61739682 in words is "sixty-one million, seven hundred thirty-nine thousand, six hundred eighty-two".

Divisors: 1 2 3 6 17 23 34 46 51 69 102 138 391 782 1173 2346 26317 52634 78951 157902 447389 605291 894778 1210582 1342167 1815873 2684334 3631746 10289947 20579894 30869841 61739682