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61242767 = 235945131
BaseRepresentation
bin1110100110011…
…1110110001111
311021020110021122
43221213312033
5111134232032
610024351155
71342361225
oct351476617
9137213248
1061242767
113162a663
12186154bb
13c8c3831
1481c2b15
15559b012
hex3a67d8f

61242767 has 8 divisors (see below), whose sum is σ = 64990080. Its totient is φ = 57585880.

The previous prime is 61242743. The next prime is 61242773. The reversal of 61242767 is 76724216.

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 61242767 - 26 = 61242703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61242737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21209 + ... + 23922.

It is an arithmetic number, because the mean of its divisors is an integer number (8123760).

Almost surely, 261242767 is an apocalyptic number.

61242767 is a deficient number, since it is larger than the sum of its proper divisors (3747313).

61242767 is a wasteful number, since it uses less digits than its factorization.

61242767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45213.

The product of its digits is 28224, while the sum is 35.

The square root of 61242767 is about 7825.7758081867. The cubic root of 61242767 is about 394.1712410665.

The spelling of 61242767 in words is "sixty-one million, two hundred forty-two thousand, seven hundred sixty-seven".

Divisors: 1 23 59 1357 45131 1038013 2662729 61242767