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42685077 = 319748861
BaseRepresentation
bin1010001011010…
…1001010010101
32222022121220210
42202311022111
541411410302
64122520033
71025550201
oct242651225
988277823
1042685077
1122104a26
1212366019
138ac6a56
145951b01
153b3266c
hex28b5295

42685077 has 8 divisors (see below), whose sum is σ = 59908960. Its totient is φ = 26958960.

The previous prime is 42685067. The next prime is 42685169. The reversal of 42685077 is 77058624.

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

It is not a de Polignac number, because 42685077 - 27 = 42684949 is a prime.

It is a super-3 number, since 3×426850773 (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42685007) 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, 374374 + ... + 374487.

It is an arithmetic number, because the mean of its divisors is an integer number (7488620).

Almost surely, 242685077 is an apocalyptic number.

It is an amenable number.

42685077 is a deficient number, since it is larger than the sum of its proper divisors (17223883).

42685077 is a wasteful number, since it uses less digits than its factorization.

42685077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748883.

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 42685077 is about 6533.3817430179. The cubic root of 42685077 is about 349.4824377535.

The spelling of 42685077 in words is "forty-two million, six hundred eighty-five thousand, seventy-seven".

Divisors: 1 3 19 57 748861 2246583 14228359 42685077