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12440404214 = 276359139739
BaseRepresentation
bin10111001011000000…
…11000000011110110
31012002222211000100122
423211200120003312
5200434220413324
65414241011542
7620166456020
oct134540300366
935088730318
1012440404214
1153043138a7
1224b2323bb2
131233481934
148602dd010
154cc265a5e
hex2e58180f6

12440404214 has 16 divisors (see below), whose sum is σ = 21329913600. Its totient is φ = 5330725224.

The previous prime is 12440404201. The next prime is 12440404237. The reversal of 12440404214 is 41240404421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19157 + ... + 158895.

It is an arithmetic number, because the mean of its divisors is an integer number (1333119600).

Almost surely, 212440404214 is an apocalyptic number.

12440404214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12440404214 is a deficient number, since it is larger than the sum of its proper divisors (8889509386).

12440404214 is a wasteful number, since it uses less digits than its factorization.

12440404214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146107.

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 12440404214 its reverse (41240404421), we get a palindrome (53680808635).

The spelling of 12440404214 in words is "twelve billion, four hundred forty million, four hundred four thousand, two hundred fourteen".

Divisors: 1 2 7 14 6359 12718 44513 89026 139739 279478 978173 1956346 888600301 1777200602 6220202107 12440404214