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204213030401 = 467437287003
BaseRepresentation
bin1011111000110000001…
…0111000111000000001
3201112002221211210201102
42332030002320320001
511321212013433101
6233451505544145
720516406055322
oct2761402707001
9645087753642
10204213030401
1179673a28306
12336b2645055
131634610ab83
149c5384a449
1554a327986b
hex2f8c0b8e01

204213030401 has 4 divisors (see below), whose sum is σ = 204650317872. Its totient is φ = 203775742932.

The previous prime is 204213030397. The next prime is 204213030409. The reversal of 204213030401 is 104030312402.

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 204213030401 - 22 = 204213030397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204213030409) 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, 218643035 + ... + 218643968.

It is an arithmetic number, because the mean of its divisors is an integer number (51162579468).

Almost surely, 2204213030401 is an apocalyptic number.

It is an amenable number.

204213030401 is a deficient number, since it is larger than the sum of its proper divisors (437287471).

204213030401 is an equidigital number, since it uses as much as digits as its factorization.

204213030401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437287470.

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

Adding to 204213030401 its reverse (104030312402), we get a palindrome (308243342803).

The spelling of 204213030401 in words is "two hundred four billion, two hundred thirteen million, thirty thousand, four hundred one".

Divisors: 1 467 437287003 204213030401