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3155252545 = 52221284129
BaseRepresentation
bin1011110000010001…
…0101010101000001
322010220011102210101
42330010111111001
522430221040140
61241032002401
7141122130004
oct27404252501
98126142711
103155252545
11137a06aa35
12740830401
133b3902153
1421d09b53b
1513700e99a
hexbc115541

3155252545 has 8 divisors (see below), whose sum is σ = 3788021160. Its totient is φ = 2523056640.

The previous prime is 3155252491. The next prime is 3155252549. The reversal of 3155252545 is 5452525513.

It can be written as a sum of positive squares in 4 ways, for example, as 1170460944 + 1984791601 = 34212^2 + 44551^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3155252545 - 27 = 3155252417 is a prime.

It is a super-3 number, since 3×31552525453 (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (3155252549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130960 + ... + 153169.

It is an arithmetic number, because the mean of its divisors is an integer number (473502645).

Almost surely, 23155252545 is an apocalyptic number.

It is an amenable number.

3155252545 is a deficient number, since it is larger than the sum of its proper divisors (632768615).

3155252545 is a wasteful number, since it uses less digits than its factorization.

3155252545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286355.

The product of its digits is 150000, while the sum is 37.

The square root of 3155252545 is about 56171.6347011550. The cubic root of 3155252545 is about 1466.7115385434.

The spelling of 3155252545 in words is "three billion, one hundred fifty-five million, two hundred fifty-two thousand, five hundred forty-five".

Divisors: 1 5 2221 11105 284129 1420645 631050509 3155252545