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61807116 = 22375313883
BaseRepresentation
bin1110101111000…
…1101000001100
311022022010102110
43223301220030
5111310311431
610044424020
71350231450
oct353615014
9138263373
1061807116
1131985668
1218848010
13ca60677
1482cc660
15565d346
hex3af1a0c

61807116 has 48 divisors (see below), whose sum is σ = 167940864. Its totient is φ = 17324736.

The previous prime is 61807111. The next prime is 61807147. The reversal of 61807116 is 61170816.

It is a happy number.

61807116 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (61807111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2490 + ... + 11393.

It is an arithmetic number, because the mean of its divisors is an integer number (3498768).

Almost surely, 261807116 is an apocalyptic number.

It is an amenable number.

61807116 is an abundant number, since it is smaller than the sum of its proper divisors (106133748).

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

61807116 is a wasteful number, since it uses less digits than its factorization.

61807116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13950 (or 13948 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 61807116 is about 7861.7501868223. The cubic root of 61807116 is about 395.3782969869.

The spelling of 61807116 in words is "sixty-one million, eight hundred seven thousand, one hundred sixteen".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 53 84 106 159 212 318 371 636 742 1113 1484 2226 4452 13883 27766 41649 55532 83298 97181 166596 194362 291543 388724 583086 735799 1166172 1471598 2207397 2943196 4414794 5150593 8829588 10301186 15451779 20602372 30903558 61807116