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214215020 = 22510710751
BaseRepresentation
bin11001100010010…
…10100101101100
3112221002020202122
430301022211230
5414314340040
633131212112
75210540405
oct1461124554
9487066678
10214215020
11aaa11a08
125b8a7038
13354c3566
14206429ac
1513c161b5
hexcc4a96c

214215020 has 12 divisors (see below), whose sum is σ = 449851584. Its totient is φ = 85686000.

The previous prime is 214214951. The next prime is 214215109. The reversal of 214215020 is 20512412.

It is a self number, because there is not a number n which added to its sum of digits gives 214215020.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5355356 + ... + 5355395.

It is an arithmetic number, because the mean of its divisors is an integer number (37487632).

Almost surely, 2214215020 is an apocalyptic number.

214215020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214215020 is an abundant number, since it is smaller than the sum of its proper divisors (235636564).

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

214215020 is a wasteful number, since it uses less digits than its factorization.

214215020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10710760 (or 10710758 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 214215020 is about 14636.0862254907. The cubic root of 214215020 is about 598.3426670349.

Adding to 214215020 its reverse (20512412), we get a palindrome (234727432).

The spelling of 214215020 in words is "two hundred fourteen million, two hundred fifteen thousand, twenty".

Divisors: 1 2 4 5 10 20 10710751 21421502 42843004 53553755 107107510 214215020