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679975003 = 1843936877
BaseRepresentation
bin101000100001111…
…001100001011011
31202101111022100101
4220201321201123
52343033200003
6151250120231
722564456261
oct5041714133
91671438311
10679975003
11319912314
1216b880077
13aab4a796
1466444431
153ea6911d
hex2887985b

679975003 has 4 divisors (see below), whose sum is σ = 680030320. Its totient is φ = 679919688.

The previous prime is 679974989. The next prime is 679975057. The reversal of 679975003 is 300579976.

679975003 is a nontrivial binomial coefficient, being equal to C(36878, 2).

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a 3-Lehmer number, since φ(679975003) divides (679975003-1)3.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-679975003 is a prime.

It is a deceptive number, since it divides R679975002.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (679975103) 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, 1 + ... + 36877.

It is an arithmetic number, because the mean of its divisors is an integer number (170007580).

Almost surely, 2679975003 is an apocalyptic number.

679975003 is the 36877-th triangular number and also the 18439-th hexagonal number.

679975003 is the 12293-rd centered nonagonal number.

679975003 is a deficient number, since it is larger than the sum of its proper divisors (55317).

679975003 is a wasteful number, since it uses less digits than its factorization.

679975003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55316.

The product of its (nonzero) digits is 357210, while the sum is 46.

The square root of 679975003 is about 26076.3303208101. The cubic root of 679975003 is about 879.3551590495.

The spelling of 679975003 in words is "six hundred seventy-nine million, nine hundred seventy-five thousand, three".

Divisors: 1 18439 36877 679975003