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2312720801 = 33735319441
BaseRepresentation
bin1000100111011001…
…0101000110100001
312222011210101111222
42021312111012201
514214024031201
61021253344425
7111211542146
oct21166250641
95864711458
102312720801
11a8751a406
12546638115
132ab1aa261
1417d2203cd
15d808591b
hex89d951a1

2312720801 has 8 divisors (see below), whose sum is σ = 2326274184. Its totient is φ = 2299207680.

The previous prime is 2312720759. The next prime is 2312720819. The reversal of 2312720801 is 1080272132.

It can be written as a sum of positive squares in 4 ways, for example, as 16394401 + 2296326400 = 4049^2 + 47920^2 .

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 2312720801 - 222 = 2308526497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2312722801) 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, 109241 + ... + 128681.

It is an arithmetic number, because the mean of its divisors is an integer number (290784273).

Almost surely, 22312720801 is an apocalyptic number.

It is an amenable number.

2312720801 is a deficient number, since it is larger than the sum of its proper divisors (13553383).

2312720801 is a wasteful number, since it uses less digits than its factorization.

2312720801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20131.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 2312720801 is about 48090.7558788589. The cubic root of 2312720801 is about 1322.4352048662.

Adding to 2312720801 its reverse (1080272132), we get a palindrome (3392992933).

The spelling of 2312720801 in words is "two billion, three hundred twelve million, seven hundred twenty thousand, eight hundred one".

Divisors: 1 337 353 19441 118961 6551617 6862673 2312720801