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2154313214 = 21956692453
BaseRepresentation
bin1000000001101000…
…0011010111111110
312120010201110011022
42000122003113332
513403001010324
6553434224142
7104246234354
oct20032032776
95503643138
102154313214
11a06065449
12501585052
13284426561
141661877d4
15c91e505e
hex806835fe

2154313214 has 8 divisors (see below), whose sum is σ = 3401547240. Its totient is φ = 1020464136.

The previous prime is 2154313211. The next prime is 2154313241. The reversal of 2154313214 is 4123134512.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154313211) 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, 28346189 + ... + 28346264.

It is an arithmetic number, because the mean of its divisors is an integer number (425193405).

Almost surely, 22154313214 is an apocalyptic number.

2154313214 is a deficient number, since it is larger than the sum of its proper divisors (1247234026).

2154313214 is a wasteful number, since it uses less digits than its factorization.

2154313214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56692474.

The product of its digits is 2880, while the sum is 26.

The square root of 2154313214 is about 46414.5797567962. The cubic root of 2154313214 is about 1291.5253902360.

Adding to 2154313214 its reverse (4123134512), we get a palindrome (6277447726).

The spelling of 2154313214 in words is "two billion, one hundred fifty-four million, three hundred thirteen thousand, two hundred fourteen".

Divisors: 1 2 19 38 56692453 113384906 1077156607 2154313214