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670102161 = 3534214479
BaseRepresentation
bin100111111100001…
…111001010010001
31201200220201100120
4213330033022101
52333021232121
6150254340453
722414526421
oct4774171221
91650821316
10670102161
11314289743
121684ba729
13a8aa1a71
1464dd4481
153dc68bc6
hex27f0f291

670102161 has 8 divisors (see below), whose sum is σ = 910327680. Its totient is φ = 438305712.

The previous prime is 670102157. The next prime is 670102163. The reversal of 670102161 is 161201076.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 670102161 - 22 = 670102157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (670102163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2107081 + ... + 2107398.

It is an arithmetic number, because the mean of its divisors is an integer number (113790960).

Almost surely, 2670102161 is an apocalyptic number.

It is an amenable number.

670102161 is a deficient number, since it is larger than the sum of its proper divisors (240225519).

670102161 is a wasteful number, since it uses less digits than its factorization.

670102161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4214535.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 670102161 is about 25886.3315477493. The cubic root of 670102161 is about 875.0784848239.

It can be divided in two parts, 670 and 102161, that added together give a triangular number (102831 = T453).

The spelling of 670102161 in words is "six hundred seventy million, one hundred two thousand, one hundred sixty-one".

Divisors: 1 3 53 159 4214479 12643437 223367387 670102161