Search a number
-
+
1872284020 = 22593614201
BaseRepresentation
bin110111110011000…
…1100100101110100
311211111000212211121
41233212030211310
512313301042040
6505441313324
764253102665
oct15746144564
94744025747
101872284020
11880945772
12443035844
1323ab7b389
1413a93136c
15ae585c4a
hex6f98c974

1872284020 has 12 divisors (see below), whose sum is σ = 3931796484. Its totient is φ = 748913600.

The previous prime is 1872284017. The next prime is 1872284053. The reversal of 1872284020 is 204822781.

It can be written as a sum of positive squares in 2 ways, for example, as 363893776 + 1508390244 = 19076^2 + 38838^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46807081 + ... + 46807120.

It is an arithmetic number, because the mean of its divisors is an integer number (327649707).

Almost surely, 21872284020 is an apocalyptic number.

1872284020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1872284020 is an abundant number, since it is smaller than the sum of its proper divisors (2059512464).

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

1872284020 is a wasteful number, since it uses less digits than its factorization.

1872284020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93614210 (or 93614208 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 1872284020 is about 43269.8973883692. The cubic root of 1872284020 is about 1232.5103554380.

The spelling of 1872284020 in words is "one billion, eight hundred seventy-two million, two hundred eighty-four thousand, twenty".

Divisors: 1 2 4 5 10 20 93614201 187228402 374456804 468071005 936142010 1872284020