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1243214302 = 21156509741
BaseRepresentation
bin100101000011001…
…1111000111011110
310012122022211102011
41022012133013132
510021230324202
6323210221434
742544101331
oct11206370736
93178284364
101243214302
11588842340
122a842487a
1316a745085
14bb17c618
1574224bd7
hex4a19f1de

1243214302 has 8 divisors (see below), whose sum is σ = 2034350712. Its totient is φ = 565097400.

The previous prime is 1243214293. The next prime is 1243214339. The reversal of 1243214302 is 2034123421.

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 56509741 = 1243214302 / (1 + 2 + 4 + 3 + 2 + 1 + 4 + 3 + 0 + 2).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28254849 + ... + 28254892.

It is an arithmetic number, because the mean of its divisors is an integer number (254293839).

Almost surely, 21243214302 is an apocalyptic number.

1243214302 is a deficient number, since it is larger than the sum of its proper divisors (791136410).

1243214302 is a wasteful number, since it uses less digits than its factorization.

1243214302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56509754.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1243214302 is about 35259.2442063071. The cubic root of 1243214302 is about 1075.2645613860.

Adding to 1243214302 its reverse (2034123421), we get a palindrome (3277337723).

The spelling of 1243214302 in words is "one billion, two hundred forty-three million, two hundred fourteen thousand, three hundred two".

Divisors: 1 2 11 22 56509741 113019482 621607151 1243214302