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707070169 = 1354390013
BaseRepresentation
bin101010001001010…
…000100011011001
31211021110212221001
4222021100203121
52422002221134
6154054545001
723343666031
oct5211204331
91737425831
10707070169
11333139313
12178968161
13b3646520
1469c988c1
154211c414
hex2a2508d9

707070169 has 4 divisors (see below), whose sum is σ = 761460196. Its totient is φ = 652680144.

The previous prime is 707070167. The next prime is 707070173. The reversal of 707070169 is 961070707.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 961070707 = 1756533571.

It can be written as a sum of positive squares in 2 ways, for example, as 449948944 + 257121225 = 21212^2 + 16035^2 .

It is a cyclic number.

It is not a de Polignac number, because 707070169 - 21 = 707070167 is a prime.

It is a super-2 number, since 2×7070701692 = 999896447779377122, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (707070167) 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, 27194994 + ... + 27195019.

It is an arithmetic number, because the mean of its divisors is an integer number (190365049).

Almost surely, 2707070169 is an apocalyptic number.

It is an amenable number.

707070169 is a deficient number, since it is larger than the sum of its proper divisors (54390027).

707070169 is a wasteful number, since it uses less digits than its factorization.

707070169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54390026.

The product of its (nonzero) digits is 18522, while the sum is 37.

The square root of 707070169 is about 26590.7910563037. The cubic root of 707070169 is about 890.8833417201.

The spelling of 707070169 in words is "seven hundred seven million, seventy thousand, one hundred sixty-nine".

Divisors: 1 13 54390013 707070169