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670285629 = 321319614943
BaseRepresentation
bin100111111100111…
…011111100111101
31201201021001000200
4213330323330331
52333043120004
6150302314113
722416222336
oct4774737475
91651231020
10670285629
113143a4572
12168588939
13a8b37420
146504128d
153dca3239
hex27f3bf3d

670285629 has 48 divisors (see below), whose sum is σ = 1115761920. Its totient is φ = 384289920.

The previous prime is 670285601. The next prime is 670285631. The reversal of 670285629 is 926582076.

670285629 is a `hidden beast` number, since 67 + 0 + 28 + 562 + 9 = 666.

It is not a de Polignac number, because 670285629 - 27 = 670285501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670285699) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 133132 + ... + 138074.

It is an arithmetic number, because the mean of its divisors is an integer number (23245040).

Almost surely, 2670285629 is an apocalyptic number.

It is an amenable number.

670285629 is a deficient number, since it is larger than the sum of its proper divisors (445476291).

670285629 is a wasteful number, since it uses less digits than its factorization.

670285629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5042 (or 5039 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 670285629 is about 25889.8750286671. The cubic root of 670285629 is about 875.1583404333.

The spelling of 670285629 in words is "six hundred seventy million, two hundred eighty-five thousand, six hundred twenty-nine".

Divisors: 1 3 9 13 19 39 57 61 117 171 183 247 549 741 793 1159 2223 2379 3477 4943 7137 10431 14829 15067 44487 45201 64259 93917 135603 192777 281751 301523 578331 845253 904569 1220921 2713707 3662763 3919799 5728937 10988289 11759397 17186811 35278191 51560433 74476181 223428543 670285629