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61106147 = 1923139831
BaseRepresentation
bin1110100100011…
…0011111100011
311020222111212122
43221012133203
5111120344042
610021414455
71341252014
oct351063743
9136874778
1061106147
1131546a53
121856a42b
13c8765ab
14818900b
1555707d2
hex3a467e3

61106147 has 8 divisors (see below), whose sum is σ = 67119360. Its totient is φ = 55372680.

The previous prime is 61106141. The next prime is 61106153. The reversal of 61106147 is 74160116.

It is an interprime number because it is at equal distance from previous prime (61106141) and next prime (61106153).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-61106147 is a prime.

It is a super-2 number, since 2×611061472 = 7467922402371218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61106141) 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, 69479 + ... + 70352.

It is an arithmetic number, because the mean of its divisors is an integer number (8389920).

Almost surely, 261106147 is an apocalyptic number.

61106147 is a deficient number, since it is larger than the sum of its proper divisors (6013213).

61106147 is a wasteful number, since it uses less digits than its factorization.

61106147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139873.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 61106147 is about 7817.0420876441. The cubic root of 61106147 is about 393.8779178911.

The spelling of 61106147 in words is "sixty-one million, one hundred six thousand, one hundred forty-seven".

Divisors: 1 19 23 437 139831 2656789 3216113 61106147