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12102214142 = 214714113601
BaseRepresentation
bin10110100010101100…
…10010000111111110
31011020102110011210102
423101112102013332
5144241131323032
65320520241102
7605622060104
oct132126220776
934212404712
1012102214142
115150425677
122419010192
1311ab3a2075
1482b427c74
154ac711362
hex2d15921fe

12102214142 has 8 divisors (see below), whose sum is σ = 18165666432. Its totient is φ = 6046992000.

The previous prime is 12102214097. The next prime is 12102214181. The reversal of 12102214142 is 24141220121.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2053859 + ... + 2059742.

It is an arithmetic number, because the mean of its divisors is an integer number (2270708304).

Almost surely, 212102214142 is an apocalyptic number.

12102214142 is a deficient number, since it is larger than the sum of its proper divisors (6063452290).

12102214142 is a wasteful number, since it uses less digits than its factorization.

12102214142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4115074.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12102214142 its reverse (24141220121), we get a palindrome (36243434263).

The spelling of 12102214142 in words is "twelve billion, one hundred two million, two hundred fourteen thousand, one hundred forty-two".

Divisors: 1 2 1471 2942 4113601 8227202 6051107071 12102214142