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30230004421 = 41737317181
BaseRepresentation
bin11100001001110110…
…010100001011000101
32220000210002100010101
4130021312110023011
5443402340120141
621515405524101
72120061540451
oct341166241305
986023070111
1030230004421
111190305a831
125a37b73631
132b09c263a6
14166abdb661
15bbde0d531
hex709d942c5

30230004421 has 4 divisors (see below), whose sum is σ = 30967321644. Its totient is φ = 29492687200.

The previous prime is 30230004383. The next prime is 30230004457. The reversal of 30230004421 is 12440003203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12440003203 = 39113180773.

It can be written as a sum of positive squares in 2 ways, for example, as 4982383396 + 25247621025 = 70586^2 + 158895^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30230004421 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 (30230004461) 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, 368658550 + ... + 368658631.

It is an arithmetic number, because the mean of its divisors is an integer number (7741830411).

Almost surely, 230230004421 is an apocalyptic number.

It is an amenable number.

30230004421 is a deficient number, since it is larger than the sum of its proper divisors (737317223).

30230004421 is an equidigital number, since it uses as much as digits as its factorization.

30230004421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737317222.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 30230004421 its reverse (12440003203), we get a palindrome (42670007624).

The spelling of 30230004421 in words is "thirty billion, two hundred thirty million, four thousand, four hundred twenty-one".

Divisors: 1 41 737317181 30230004421