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3309369869 = 13254566913
BaseRepresentation
bin1100010101000000…
…1111101000001101
322112122011102000102
43011100033220031
523234144313434
61304215140445
7145003115441
oct30520175015
98478142012
103309369869
111449064623
12784374725
13409813130
14235738821
1514580407e
hexc540fa0d

3309369869 has 4 divisors (see below), whose sum is σ = 3563936796. Its totient is φ = 3054802944.

The previous prime is 3309369779. The next prime is 3309369901. The reversal of 3309369869 is 9689639033.

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 389588644 + 2919781225 = 19738^2 + 54035^2 .

It is a cyclic number.

It is not a de Polignac number, because 3309369869 - 216 = 3309304333 is a prime.

It is a super-2 number, since 2×33093698692 = 21903857859690154322, 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 (3309369169) 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, 127283444 + ... + 127283469.

It is an arithmetic number, because the mean of its divisors is an integer number (890984199).

Almost surely, 23309369869 is an apocalyptic number.

It is an amenable number.

3309369869 is a deficient number, since it is larger than the sum of its proper divisors (254566927).

3309369869 is a wasteful number, since it uses less digits than its factorization.

3309369869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254566926.

The product of its (nonzero) digits is 5668704, while the sum is 56.

The square root of 3309369869 is about 57527.1228986815. The cubic root of 3309369869 is about 1490.2133035468.

The spelling of 3309369869 in words is "three billion, three hundred nine million, three hundred sixty-nine thousand, eight hundred sixty-nine".

Divisors: 1 13 254566913 3309369869