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42680613 = 314226871
BaseRepresentation
bin1010001011010…
…0000100100101
32222022101210110
42202310010211
541411234423
64122443233
71025531163
oct242640445
988271713
1042680613
1122101638
1212363519
138ac4a01
145950233
153b31193
hex28b4125

42680613 has 4 divisors (see below), whose sum is σ = 56907488. Its totient is φ = 28453740.

The previous prime is 42680611. The next prime is 42680621. The reversal of 42680613 is 31608624.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 42680613 - 21 = 42680611 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 (42680611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7113433 + ... + 7113438.

It is an arithmetic number, because the mean of its divisors is an integer number (14226872).

Almost surely, 242680613 is an apocalyptic number.

It is an amenable number.

42680613 is a deficient number, since it is larger than the sum of its proper divisors (14226875).

42680613 is a wasteful number, since it uses less digits than its factorization.

42680613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14226874.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 42680613 is about 6533.0401039639. The cubic root of 42680613 is about 349.4702543856.

The spelling of 42680613 in words is "forty-two million, six hundred eighty thousand, six hundred thirteen".

Divisors: 1 3 14226871 42680613