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4397956069 = 136737092
BaseRepresentation
bin1000001100010001…
…10111101111100101
3102100111112022112211
410012020313233211
533001334043234
62004223243421
7213662003233
oct40610675745
912314468484
104397956069
111957593541
12a28a49571
135511c8890
142da145953
151ab183164
hex106237be5

4397956069 has 12 divisors (see below), whose sum is σ = 4749997476. Its totient is φ = 4047902208.

The previous prime is 4397956067. The next prime is 4397956097. The reversal of 4397956069 is 9606597934.

It can be written as a sum of positive squares in 6 ways, for example, as 1803276225 + 2594679844 = 42465^2 + 50938^2 .

It is not a de Polignac number, because 4397956069 - 21 = 4397956067 is a prime.

It is a super-2 number, since 2×43979560692 = 38684035169707865522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4397956067) 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 11 ways as a sum of consecutive naturals, for example, 6202687 + ... + 6203395.

It is an arithmetic number, because the mean of its divisors is an integer number (395833123).

Almost surely, 24397956069 is an apocalyptic number.

It is an amenable number.

4397956069 is a deficient number, since it is larger than the sum of its proper divisors (352041407).

4397956069 is an frugal number, since it uses more digits than its factorization.

4397956069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2104 (or 1395 counting only the distinct ones).

The product of its (nonzero) digits is 11022480, while the sum is 58.

The square root of 4397956069 is about 66317.0873078726. The cubic root of 4397956069 is about 1638.3887691533.

The spelling of 4397956069 in words is "four billion, three hundred ninety-seven million, nine hundred fifty-six thousand, sixty-nine".

Divisors: 1 13 673 709 8749 9217 477157 502681 6203041 6534853 338304313 4397956069