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5214401221 = 31168206491
BaseRepresentation
bin1001101101100110…
…10111001011000101
3111110101211000202011
410312303113023011
541134341314341
62221230414221
7243134451631
oct46663271305
914411730664
105214401221
1122364368a7
121016361371
136513b8b13
14376751dc1
15207ba7b81
hex136cd72c5

5214401221 has 4 divisors (see below), whose sum is σ = 5382607744. Its totient is φ = 5046194700.

The previous prime is 5214401191. The next prime is 5214401233. The reversal of 5214401221 is 1221044125.

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 5214401221 - 25 = 5214401189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5214401192 and 5214401201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5214401281) 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, 84103215 + ... + 84103276.

It is an arithmetic number, because the mean of its divisors is an integer number (1345651936).

Almost surely, 25214401221 is an apocalyptic number.

It is an amenable number.

5214401221 is a deficient number, since it is larger than the sum of its proper divisors (168206523).

5214401221 is a wasteful number, since it uses less digits than its factorization.

5214401221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168206522.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 5214401221 is about 72210.8109703803. The cubic root of 5214401221 is about 1734.0760827602.

Adding to 5214401221 its reverse (1221044125), we get a palindrome (6435445346).

The spelling of 5214401221 in words is "five billion, two hundred fourteen million, four hundred one thousand, two hundred twenty-one".

Divisors: 1 31 168206491 5214401221