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12151331045 = 57347180887
BaseRepresentation
bin10110101000100011…
…01001100011100101
31011100211212120111222
423110101221203211
5144341220043140
65325433110125
7610056416060
oct132421514345
934324776458
1012151331045
115176122957
122431558345
1311b860b519
14833b718d7
154b1bb45b5
hex2d44698e5

12151331045 has 8 divisors (see below), whose sum is σ = 16664682624. Its totient is φ = 8332341264.

The previous prime is 12151331033. The next prime is 12151331047. The reversal of 12151331045 is 54013315121.

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

It is a cyclic number.

It is not a de Polignac number, because 12151331045 - 216 = 12151265509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12151331047) 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, 173590409 + ... + 173590478.

It is an arithmetic number, because the mean of its divisors is an integer number (2083085328).

Almost surely, 212151331045 is an apocalyptic number.

It is an amenable number.

12151331045 is a deficient number, since it is larger than the sum of its proper divisors (4513351579).

12151331045 is an equidigital number, since it uses as much as digits as its factorization.

12151331045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347180899.

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

Adding to 12151331045 its reverse (54013315121), we get a palindrome (66164646166).

The spelling of 12151331045 in words is "twelve billion, one hundred fifty-one million, three hundred thirty-one thousand, forty-five".

Divisors: 1 5 7 35 347180887 1735904435 2430266209 12151331045