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2321101997 = 19122163263
BaseRepresentation
bin1000101001011001…
…0011010010101101
312222202120012100122
42022112103102231
514223200230442
61022153134325
7111343020134
oct21226232255
95882505318
102321101997
11a91224315
125493ba3a5
132acb53046
141803a291b
15d8b8ddd2
hex8a5934ad

2321101997 has 4 divisors (see below), whose sum is σ = 2443265280. Its totient is φ = 2198938716.

The previous prime is 2321101969. The next prime is 2321101999. The reversal of 2321101997 is 7991011232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2321101997 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 (2321101999) 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, 61081613 + ... + 61081650.

It is an arithmetic number, because the mean of its divisors is an integer number (610816320).

Almost surely, 22321101997 is an apocalyptic number.

It is an amenable number.

2321101997 is a deficient number, since it is larger than the sum of its proper divisors (122163283).

2321101997 is a wasteful number, since it uses less digits than its factorization.

2321101997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122163282.

The product of its (nonzero) digits is 6804, while the sum is 35.

The square root of 2321101997 is about 48177.8164407645. The cubic root of 2321101997 is about 1324.0307608778.

The spelling of 2321101997 in words is "two billion, three hundred twenty-one million, one hundred one thousand, nine hundred ninety-seven".

Divisors: 1 19 122163263 2321101997