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60684989 = 479126691
BaseRepresentation
bin1110011101111…
…1101010111101
311020012010011012
43213133222331
5111013404424
610004405005
71334546111
oct347375275
9136163135
1060684989
1131289592
12183a6765
13c7599a1
1480b9741
1554dab0e
hex39dfabd

60684989 has 4 divisors (see below), whose sum is σ = 60812160. Its totient is φ = 60557820.

The previous prime is 60684983. The next prime is 60684991. The reversal of 60684989 is 98948606.

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 a de Polignac number, because none of the positive numbers 2k-60684989 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 (60684983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62867 + ... + 63824.

It is an arithmetic number, because the mean of its divisors is an integer number (15203040).

Almost surely, 260684989 is an apocalyptic number.

It is an amenable number.

60684989 is a deficient number, since it is larger than the sum of its proper divisors (127171).

60684989 is a wasteful number, since it uses less digits than its factorization.

60684989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127170.

The product of its (nonzero) digits is 746496, while the sum is 50.

The square root of 60684989 is about 7790.0570601248. The cubic root of 60684989 is about 392.9709310814.

The spelling of 60684989 in words is "sixty million, six hundred eighty-four thousand, nine hundred eighty-nine".

Divisors: 1 479 126691 60684989