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60087661 = 232612507
BaseRepresentation
bin1110010100110…
…1110101101101
311012001202202221
43211031311231
5110340301121
65543515341
71326510454
oct345156555
9135052687
1060087661
1130a10827
1218158b51
13c5aab3a
147da1b9b
15541db41
hex394dd6d

60087661 has 4 divisors (see below), whose sum is σ = 62700192. Its totient is φ = 57475132.

The previous prime is 60087659. The next prime is 60087683. The reversal of 60087661 is 16678006.

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 a cyclic number.

It is not a de Polignac number, because 60087661 - 21 = 60087659 is a prime.

It is a super-2 number, since 2×600876612 = 7221054008901842, which contains 22 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 (60087611) 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, 1306231 + ... + 1306276.

It is an arithmetic number, because the mean of its divisors is an integer number (15675048).

Almost surely, 260087661 is an apocalyptic number.

It is an amenable number.

60087661 is a deficient number, since it is larger than the sum of its proper divisors (2612531).

60087661 is a wasteful number, since it uses less digits than its factorization.

60087661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2612530.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 60087661 is about 7751.6231203536. The cubic root of 60087661 is about 391.6773275706.

The spelling of 60087661 in words is "sixty million, eighty-seven thousand, six hundred sixty-one".

Divisors: 1 23 2612507 60087661