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1402212223 = 12979108037
BaseRepresentation
bin101001110010100…
…0000111101111111
310121201111202120001
41103211000331333
510332431242343
6351050135131
746514415166
oct12345007577
93551452501
101402212223
1165a56a885
123317214a7
13194674699
14d432a3dd
158318044d
hex53940f7f

1402212223 has 4 divisors (see below), whose sum is σ = 1402333240. Its totient is φ = 1402091208.

The previous prime is 1402212221. The next prime is 1402212239. The reversal of 1402212223 is 3222122041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1402212223 - 21 = 1402212221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1402212223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402212221) 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, 41040 + ... + 66997.

It is an arithmetic number, because the mean of its divisors is an integer number (350583310).

Almost surely, 21402212223 is an apocalyptic number.

1402212223 is a deficient number, since it is larger than the sum of its proper divisors (121017).

1402212223 is a wasteful number, since it uses less digits than its factorization.

1402212223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121016.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1402212223 is about 37446.1242720792. The cubic root of 1402212223 is about 1119.2778675648.

Adding to 1402212223 its reverse (3222122041), we get a palindrome (4624334264).

The spelling of 1402212223 in words is "one billion, four hundred two million, two hundred twelve thousand, two hundred twenty-three".

Divisors: 1 12979 108037 1402212223