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61245677 = 314148187
BaseRepresentation
bin1110100110100…
…0100011101101
311021020121021102
43221220203231
5111134330202
610024412445
71342402553
oct351504355
9137217242
1061245677
1131631869
1218617125
13c8c4c5c
1481c3bd3
15559bd02
hex3a688ed

61245677 has 8 divisors (see below), whose sum is σ = 64764672. Its totient is φ = 57823200.

The previous prime is 61245673. The next prime is 61245689. The reversal of 61245677 is 77654216.

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

It is a cyclic number.

It is not a de Polignac number, because 61245677 - 22 = 61245673 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61245677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61245671) 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, 22823 + ... + 25364.

It is an arithmetic number, because the mean of its divisors is an integer number (8095584).

Almost surely, 261245677 is an apocalyptic number.

It is an amenable number.

61245677 is a deficient number, since it is larger than the sum of its proper divisors (3518995).

61245677 is a wasteful number, since it uses less digits than its factorization.

61245677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48259.

The product of its digits is 70560, while the sum is 38.

The square root of 61245677 is about 7825.9617300368. The cubic root of 61245677 is about 394.1774840902.

The spelling of 61245677 in words is "sixty-one million, two hundred forty-five thousand, six hundred seventy-seven".

Divisors: 1 31 41 1271 48187 1493797 1975667 61245677