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670124087 = 6689100183
BaseRepresentation
bin100111111100010…
…100100000110111
31201200221211102122
4213330110200313
52333022432322
6150255030155
722414650353
oct4774244067
91650854378
10670124087
113142a4166
1216850b35b
13a8aaba39
1464ddc463
153dc70442
hex27f14837

670124087 has 4 divisors (see below), whose sum is σ = 670230960. Its totient is φ = 670017216.

The previous prime is 670124051. The next prime is 670124099. The reversal of 670124087 is 780421076.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 670124087 - 224 = 653346871 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 (670124027) 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, 43403 + ... + 56780.

It is an arithmetic number, because the mean of its divisors is an integer number (167557740).

Almost surely, 2670124087 is an apocalyptic number.

670124087 is a deficient number, since it is larger than the sum of its proper divisors (106873).

670124087 is a wasteful number, since it uses less digits than its factorization.

670124087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106872.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 670124087 is about 25886.7550496388. The cubic root of 670124087 is about 875.0880290211.

The spelling of 670124087 in words is "six hundred seventy million, one hundred twenty-four thousand, eighty-seven".

Divisors: 1 6689 100183 670124087