Search a number
-
+
3230420420 = 225374365433
BaseRepresentation
bin1100000010001100…
…0100110111000100
322100010121100201202
43000203010313010
523103441423140
61252315042032
7143024056223
oct30043046704
98303540652
103230420420
111408540747
12761a40318
133c635cc96
14229066cba
1513d90b915
hexc08c4dc4

3230420420 has 24 divisors (see below), whose sum is σ = 6967232664. Its totient is φ = 1257244416.

The previous prime is 3230420419. The next prime is 3230420447. The reversal of 3230420420 is 240240323.

It can be written as a sum of positive squares in 4 ways, for example, as 452497984 + 2777922436 = 21272^2 + 52706^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3230420392 and 3230420401.

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, 2181977 + ... + 2183456.

It is an arithmetic number, because the mean of its divisors is an integer number (290301361).

Almost surely, 23230420420 is an apocalyptic number.

It is an amenable number.

3230420420 is an abundant number, since it is smaller than the sum of its proper divisors (3736812244).

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

3230420420 is a wasteful number, since it uses less digits than its factorization.

3230420420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4365479 (or 4365477 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 3230420420 is about 56836.7875587634. The cubic root of 3230420420 is about 1478.2674545885.

Adding to 3230420420 its reverse (240240323), we get a palindrome (3470660743).

The spelling of 3230420420 in words is "three billion, two hundred thirty million, four hundred twenty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 37 74 148 185 370 740 4365433 8730866 17461732 21827165 43654330 87308660 161521021 323042042 646084084 807605105 1615210210 3230420420