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1402444212 = 223138990027
BaseRepresentation
bin101001110010111…
…1001100110110100
310121201221112210020
41103211321212310
510333011203322
6351055125140
746516402431
oct12345714664
93551845706
101402444212
1165a709104
123318137b0
13194726160
14d438ab88
15831c905c
hex539799b4

1402444212 has 24 divisors (see below), whose sum is σ = 3524090976. Its totient is φ = 431521248.

The previous prime is 1402444193. The next prime is 1402444213. The reversal of 1402444212 is 2124442041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402444213) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4494858 + ... + 4495169.

It is an arithmetic number, because the mean of its divisors is an integer number (146837124).

Almost surely, 21402444212 is an apocalyptic number.

1402444212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1402444212 is an abundant number, since it is smaller than the sum of its proper divisors (2121646764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1402444212 is a wasteful number, since it uses less digits than its factorization.

1402444212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8990047 (or 8990045 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 1402444212 is about 37449.2217809663. The cubic root of 1402444212 is about 1119.3395904696.

Adding to 1402444212 its reverse (2124442041), we get a palindrome (3526886253).

The spelling of 1402444212 in words is "one billion, four hundred two million, four hundred forty-four thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 8990027 17980054 26970081 35960108 53940162 107880324 116870351 233740702 350611053 467481404 701222106 1402444212