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3000240561 = 31756956923
BaseRepresentation
bin1011001011010100…
…0000100110110001
321202002111000022210
42302311000212301
522121030144221
61213413322333
7134230424013
oct26265004661
97662430283
103000240561
1112aa61515a
126b89363a9
1338a769b96
1420666a1b3
151285e0276
hexb2d409b1

3000240561 has 8 divisors (see below), whose sum is σ = 4000618720. Its totient is φ = 2000011392.

The previous prime is 3000240553. The next prime is 3000240569. The reversal of 3000240561 is 1650420003.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3000240553) and next prime (3000240569).

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

It is not a de Polignac number, because 3000240561 - 23 = 3000240553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3000240569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24246 + ... + 81168.

It is an arithmetic number, because the mean of its divisors is an integer number (500077340).

Almost surely, 23000240561 is an apocalyptic number.

It is an amenable number.

3000240561 is a deficient number, since it is larger than the sum of its proper divisors (1000378159).

3000240561 is a wasteful number, since it uses less digits than its factorization.

3000240561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74495.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 3000240561 is about 54774.4517179314. The cubic root of 3000240561 is about 1442.2881191658.

Adding to 3000240561 its reverse (1650420003), we get a palindrome (4650660564).

The spelling of 3000240561 in words is "three billion, two hundred forty thousand, five hundred sixty-one".

Divisors: 1 3 17569 52707 56923 170769 1000080187 3000240561