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397049029 = 13179170627
BaseRepresentation
bin10111101010100…
…111110011000101
31000200010011212121
4113222213303011
51303121032104
6103222045541
712560601226
oct2752476305
91020104777
10397049029
1119413a8a3
12b0b798b1
136434a370
143aa3724d
1524cce254
hex17aa7cc5

397049029 has 8 divisors (see below), whose sum is σ = 429982560. Its totient is φ = 364457136.

The previous prime is 397049017. The next prime is 397049041. The reversal of 397049029 is 920940793.

It is an interprime number because it is at equal distance from previous prime (397049017) and next prime (397049041).

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

It is a cyclic number.

It is not a de Polignac number, because 397049029 - 223 = 388660421 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 (397049629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82987 + ... + 87640.

It is an arithmetic number, because the mean of its divisors is an integer number (53747820).

Almost surely, 2397049029 is an apocalyptic number.

It is an amenable number.

397049029 is a deficient number, since it is larger than the sum of its proper divisors (32933531).

397049029 is a wasteful number, since it uses less digits than its factorization.

397049029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170819.

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 397049029 is about 19926.0891546736. The cubic root of 397049029 is about 734.9899139406.

The spelling of 397049029 in words is "three hundred ninety-seven million, forty-nine thousand, twenty-nine".

Divisors: 1 13 179 2327 170627 2218151 30542233 397049029