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323204401 = 1324861877
BaseRepresentation
bin10011010000111…
…011010100110001
3211112011111002101
4103100323110301
51130220020101
652023220401
711003122612
oct2320732461
9745144071
10323204401
11156493283
12902a7701
1351c63910
1430cd3c09
151d594401
hex1343b531

323204401 has 4 divisors (see below), whose sum is σ = 348066292. Its totient is φ = 298342512.

The previous prime is 323204359. The next prime is 323204423. The reversal of 323204401 is 104402323.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104402323 = 432427961.

It can be written as a sum of positive squares in 2 ways, for example, as 221295376 + 101909025 = 14876^2 + 10095^2 .

It is not a de Polignac number, because 323204401 - 211 = 323202353 is a prime.

It is a super-2 number, since 2×3232044012 = 208922169651537602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (323204501) 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, 12430926 + ... + 12430951.

It is an arithmetic number, because the mean of its divisors is an integer number (87016573).

Almost surely, 2323204401 is an apocalyptic number.

It is an amenable number.

323204401 is a deficient number, since it is larger than the sum of its proper divisors (24861891).

323204401 is a wasteful number, since it uses less digits than its factorization.

323204401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24861890.

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

The square root of 323204401 is about 17977.8864441847. The cubic root of 323204401 is about 686.2659035712.

Adding to 323204401 its reverse (104402323), we get a palindrome (427606724).

The spelling of 323204401 in words is "three hundred twenty-three million, two hundred four thousand, four hundred one".

Divisors: 1 13 24861877 323204401