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4214030021 = 18312301491
BaseRepresentation
bin1111101100101100…
…1111111011000101
3101212200102220102222
43323023033323011
532112242430041
61534053142125
7206266443545
oct37313177305
911780386388
104214030021
11187278a143
1299732a945
1352207b9b6
142bd949325
15199e5174b
hexfb2cfec5

4214030021 has 4 divisors (see below), whose sum is σ = 4216333344. Its totient is φ = 4211726700.

The previous prime is 4214030017. The next prime is 4214030081. The reversal of 4214030021 is 1200304124.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4214030021 - 22 = 4214030017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4214030081) 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, 1148915 + ... + 1152576.

It is an arithmetic number, because the mean of its divisors is an integer number (1054083336).

Almost surely, 24214030021 is an apocalyptic number.

It is an amenable number.

4214030021 is a deficient number, since it is larger than the sum of its proper divisors (2303323).

4214030021 is a wasteful number, since it uses less digits than its factorization.

4214030021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2303322.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 4214030021 is about 64915.5607000356. The cubic root of 4214030021 is about 1615.2231919712.

Adding to 4214030021 its reverse (1200304124), we get a palindrome (5414334145).

The spelling of 4214030021 in words is "four billion, two hundred fourteen million, thirty thousand, twenty-one".

Divisors: 1 1831 2301491 4214030021