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676587645 = 325131911399
BaseRepresentation
bin101000010100111…
…110100001111101
31202011010012202200
4220110332201331
52341201301040
6151045342113
722523620506
oct5024764175
91664105680
10676587645
11317a09348
1216a707939
13aa232a26
1465c01bad
153e5ea630
hex2853e87d

676587645 has 24 divisors (see below), whose sum is σ = 1173744000. Its totient is φ = 360541536.

The previous prime is 676587631. The next prime is 676587649. The reversal of 676587645 is 546785676.

It is not a de Polignac number, because 676587645 - 24 = 676587629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 676587591 and 676587600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (676587649) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53656 + ... + 65054.

It is an arithmetic number, because the mean of its divisors is an integer number (48906000).

Almost surely, 2676587645 is an apocalyptic number.

It is an amenable number.

676587645 is a deficient number, since it is larger than the sum of its proper divisors (497156355).

676587645 is a wasteful number, since it uses less digits than its factorization.

676587645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12729 (or 12726 counting only the distinct ones).

The product of its digits is 8467200, while the sum is 54.

The square root of 676587645 is about 26011.2984104985. The cubic root of 676587645 is about 877.8925314227.

The spelling of 676587645 in words is "six hundred seventy-six million, five hundred eighty-seven thousand, six hundred forty-five".

Divisors: 1 3 5 9 15 45 1319 3957 6595 11399 11871 19785 34197 56995 59355 102591 170985 512955 15035281 45105843 75176405 135317529 225529215 676587645