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3145550331 = 371113617101
BaseRepresentation
bin1011101101111101…
…0100100111111011
322010012220111212010
42323133110213323
522420230102311
61240044021003
7140643510450
oct27337244773
98105814763
103145550331
111374643580
12739531763
133b18b5cb1
1421ba93827
15136244da6
hexbb7d49fb

3145550331 has 16 divisors (see below), whose sum is σ = 5228967168. Its totient is φ = 1634052000.

The previous prime is 3145550297. The next prime is 3145550383. The reversal of 3145550331 is 1330555413.

It is not a de Polignac number, because 3145550331 - 27 = 3145550203 is a prime.

It is a super-2 number, since 2×31455503312 = 19788973769708419122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3145550831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6808320 + ... + 6808781.

It is an arithmetic number, because the mean of its divisors is an integer number (326810448).

Almost surely, 23145550331 is an apocalyptic number.

3145550331 is a deficient number, since it is larger than the sum of its proper divisors (2083416837).

3145550331 is a wasteful number, since it uses less digits than its factorization.

3145550331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13617122.

The product of its (nonzero) digits is 13500, while the sum is 30.

The square root of 3145550331 is about 56085.2059905284. The cubic root of 3145550331 is about 1465.2066447391.

The spelling of 3145550331 in words is "three billion, one hundred forty-five million, five hundred fifty thousand, three hundred thirty-one".

Divisors: 1 3 7 11 21 33 77 231 13617101 40851303 95319707 149788111 285959121 449364333 1048516777 3145550331