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4021223213 = 71930234761
BaseRepresentation
bin1110111110101110…
…1111111100101101
3101101020122022020002
43233223233330231
531213413120323
61503004434045
7201435555560
oct35753577455
911336568202
104021223213
11178396a577
12942848925
134c1142827
142a20ba4d7
15188068828
hexefaeff2d

4021223213 has 8 divisors (see below), whose sum is σ = 4837561920. Its totient is φ = 3265354080.

The previous prime is 4021223209. The next prime is 4021223257. The reversal of 4021223213 is 3123221204.

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

It is a cyclic number.

It is not a de Polignac number, because 4021223213 - 22 = 4021223209 is a prime.

It is a super-2 number, since 2×40212232132 = 32340472257540086738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021223513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15117248 + ... + 15117513.

It is an arithmetic number, because the mean of its divisors is an integer number (604695240).

Almost surely, 24021223213 is an apocalyptic number.

It is an amenable number.

4021223213 is a deficient number, since it is larger than the sum of its proper divisors (816338707).

4021223213 is a wasteful number, since it uses less digits than its factorization.

4021223213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30234787.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 4021223213 is about 63413.1154651780. The cubic root of 4021223213 is about 1590.2035804621.

Adding to 4021223213 its reverse (3123221204), we get a palindrome (7144444417).

The spelling of 4021223213 in words is "four billion, twenty-one million, two hundred twenty-three thousand, two hundred thirteen".

Divisors: 1 7 19 133 30234761 211643327 574460459 4021223213