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12157015246 = 221128808093
BaseRepresentation
bin10110101001001110…
…10101010011001110
31011101020120100202221
423110213111103032
5144344143441441
65330155005554
7610155632065
oct132447252316
934336510687
1012157015246
115179355542
1224334398ba
1311b984b85c
148348111dc
154b24388d1
hex2d49d54ce

12157015246 has 8 divisors (see below), whose sum is σ = 18321947784. Its totient is φ = 6049699320.

The previous prime is 12157015243. The next prime is 12157015249. The reversal of 12157015246 is 64251075121.

It is an interprime number because it is at equal distance from previous prime (12157015243) and next prime (12157015249).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12157015243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14403625 + ... + 14404468.

It is an arithmetic number, because the mean of its divisors is an integer number (2290243473).

Almost surely, 212157015246 is an apocalyptic number.

12157015246 is a deficient number, since it is larger than the sum of its proper divisors (6164932538).

12157015246 is a wasteful number, since it uses less digits than its factorization.

12157015246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28808306.

The product of its (nonzero) digits is 16800, while the sum is 34.

The spelling of 12157015246 in words is "twelve billion, one hundred fifty-seven million, fifteen thousand, two hundred forty-six".

Divisors: 1 2 211 422 28808093 57616186 6078507623 12157015246