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3121145153 = 74310369253
BaseRepresentation
bin1011101000001000…
…1110010101000001
322001111222121020122
42322002032111001
522343003121103
61233412550025
7140226203360
oct27202162501
98044877218
103121145153
111361894605
12731322315
133a981c769
1421873d7d7
15134023b38
hexba08e541

3121145153 has 8 divisors (see below), whose sum is σ = 3649977408. Its totient is φ = 2613051504.

The previous prime is 3121145147. The next prime is 3121145171. The reversal of 3121145153 is 3515411213.

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

It is not a de Polignac number, because 3121145153 - 222 = 3116950849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3121145123) 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, 5184326 + ... + 5184927.

It is an arithmetic number, because the mean of its divisors is an integer number (456247176).

Almost surely, 23121145153 is an apocalyptic number.

It is an amenable number.

3121145153 is a deficient number, since it is larger than the sum of its proper divisors (528832255).

3121145153 is a wasteful number, since it uses less digits than its factorization.

3121145153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10369303.

The product of its digits is 1800, while the sum is 26.

The square root of 3121145153 is about 55867.2099983523. The cubic root of 3121145153 is about 1461.4074675651.

Adding to 3121145153 its reverse (3515411213), we get a palindrome (6636556366).

The spelling of 3121145153 in words is "three billion, one hundred twenty-one million, one hundred forty-five thousand, one hundred fifty-three".

Divisors: 1 7 43 301 10369253 72584771 445877879 3121145153