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323020012 = 22724147869
BaseRepresentation
bin10011010000001…
…110010011101100
3211111211010011011
4103100032103230
51130143120022
652015235004
711001424210
oct2320162354
9744733134
10323020012
11156377797
1290218a64
1351bcaa03
1430c86940
151d559977
hex1340e4ec

323020012 has 24 divisors (see below), whose sum is σ = 648734240. Its totient is φ = 137859840.

The previous prime is 323020003. The next prime is 323020013. The reversal of 323020012 is 210020323.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 323019974 and 323020001.

It is not an unprimeable number, because it can be changed into a prime (323020013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17187 + ... + 30682.

Almost surely, 2323020012 is an apocalyptic number.

It is an amenable number.

323020012 is an abundant number, since it is smaller than the sum of its proper divisors (325714228).

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

323020012 is a wasteful number, since it uses less digits than its factorization.

323020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48121 (or 48119 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 323020012 is about 17972.7574957211. The cubic root of 323020012 is about 686.1353732167.

Adding to 323020012 its reverse (210020323), we get a palindrome (533040335).

The spelling of 323020012 in words is "three hundred twenty-three million, twenty thousand, twelve".

Divisors: 1 2 4 7 14 28 241 482 964 1687 3374 6748 47869 95738 191476 335083 670166 1340332 11536429 23072858 46145716 80755003 161510006 323020012