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5421443052 = 2231923778259
BaseRepresentation
bin1010000110010010…
…01010011111101100
3111222211101211202010
411003021022133230
542100342134202
62253544201220
7251230335264
oct50311123754
914884354663
105421443052
112332299453
121073769210
1368526a38c
143960487a4
1521ae5376c
hex14324a7ec

5421443052 has 24 divisors (see below), whose sum is σ = 13315825600. Its totient is φ = 1712034576.

The previous prime is 5421443051. The next prime is 5421443057. The reversal of 5421443052 is 2503441245.

It is not an unprimeable number, because it can be changed into a prime (5421443051) 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, 11888902 + ... + 11889357.

Almost surely, 25421443052 is an apocalyptic number.

It is an amenable number.

5421443052 is an abundant number, since it is smaller than the sum of its proper divisors (7894382548).

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

5421443052 is a wasteful number, since it uses less digits than its factorization.

5421443052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23778285 (or 23778283 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 5421443052 is about 73630.4492176980. The cubic root of 5421443052 is about 1756.7297930996.

Adding to 5421443052 its reverse (2503441245), we get a palindrome (7924884297).

The spelling of 5421443052 in words is "five billion, four hundred twenty-one million, four hundred forty-three thousand, fifty-two".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 23778259 47556518 71334777 95113036 142669554 285339108 451786921 903573842 1355360763 1807147684 2710721526 5421443052