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3122320001 = 7793400657
BaseRepresentation
bin1011101000011010…
…1101001010000001
322001121012021211112
42322012231022001
522343303220001
61233454053105
7140242165523
oct27206551201
98047167745
103122320001
111362517259
127317aa195
133a9b41438
14218967a13
151341a6cbb
hexba1ad281

3122320001 has 4 divisors (see below), whose sum is σ = 3122728452. Its totient is φ = 3121911552.

The previous prime is 3122319971. The next prime is 3122320007. The reversal of 3122320001 is 1000232213.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1373073025 + 1749246976 = 37055^2 + 41824^2 .

It is a cyclic number.

It is not a de Polignac number, because 3122320001 - 218 = 3122057857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3122320007) 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, 192536 + ... + 208121.

It is an arithmetic number, because the mean of its divisors is an integer number (780682113).

Almost surely, 23122320001 is an apocalyptic number.

It is an amenable number.

3122320001 is a deficient number, since it is larger than the sum of its proper divisors (408451).

3122320001 is an equidigital number, since it uses as much as digits as its factorization.

3122320001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408450.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 3122320001 is about 55877.7236562121. The cubic root of 3122320001 is about 1461.5908101285.

Adding to 3122320001 its reverse (1000232213), we get a palindrome (4122552214).

The spelling of 3122320001 in words is "three billion, one hundred twenty-two million, three hundred twenty thousand, one".

Divisors: 1 7793 400657 3122320001