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2720669031 = 32302296559
BaseRepresentation
bin1010001000101010…
…0001110101100111
321000121102022021200
42202022201311213
521032442402111
61125545213543
7124264206453
oct24212416547
97017368250
102720669031
111176823a03
1263b1912b3
13344872542
141bb493663
1510dcb9256
hexa22a1d67

2720669031 has 6 divisors (see below), whose sum is σ = 3929855280. Its totient is φ = 1813779348.

The previous prime is 2720669009. The next prime is 2720669041. The reversal of 2720669031 is 1309660272.

It is not a de Polignac number, because 2720669031 - 219 = 2720144743 is a prime.

It is a super-2 number, since 2×27206690312 = 14804079952484957922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2720669041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 151148271 + ... + 151148288.

It is an arithmetic number, because the mean of its divisors is an integer number (654975880).

Almost surely, 22720669031 is an apocalyptic number.

2720669031 is a deficient number, since it is larger than the sum of its proper divisors (1209186249).

2720669031 is a wasteful number, since it uses less digits than its factorization.

2720669031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302296565 (or 302296562 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 2720669031 is about 52160.0328891767. The cubic root of 2720669031 is about 1396.0208491001.

The spelling of 2720669031 in words is "two billion, seven hundred twenty million, six hundred sixty-nine thousand, thirty-one".

Divisors: 1 3 9 302296559 906889677 2720669031