Search a number
-
+
330023220 = 22355500387
BaseRepresentation
bin10011101010111…
…100000100110100
3211222222220202020
4103222330010310
51133441220340
652425313140
711115102552
oct2352740464
9758886666
10330023220
1115a32036a
12926357b0
13534b0517
1431b8abd2
151de8e9d0
hex13abc134

330023220 has 24 divisors (see below), whose sum is σ = 924065184. Its totient is φ = 88006176.

The previous prime is 330023153. The next prime is 330023339. The reversal of 330023220 is 22320033.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 330023220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2750134 + ... + 2750253.

It is an arithmetic number, because the mean of its divisors is an integer number (38502716).

Almost surely, 2330023220 is an apocalyptic number.

330023220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

330023220 is an abundant number, since it is smaller than the sum of its proper divisors (594041964).

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

330023220 is a wasteful number, since it uses less digits than its factorization.

330023220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5500399 (or 5500397 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 15.

The square root of 330023220 is about 18166.5412228085. The cubic root of 330023220 is about 691.0585307046.

Adding to 330023220 its reverse (22320033), we get a palindrome (352343253).

The spelling of 330023220 in words is "three hundred thirty million, twenty-three thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 5500387 11000774 16501161 22001548 27501935 33002322 55003870 66004644 82505805 110007740 165011610 330023220