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16772260 = 225838613
BaseRepresentation
bin111111111110…
…110010100100
31011120010012211
4333332302210
513243203020
61355253204
7262363501
oct77766244
934503184
1016772260
11951627a
12574a204
13362321b
1423284a8
15171485a
hexffeca4

16772260 has 12 divisors (see below), whose sum is σ = 35221788. Its totient is φ = 6708896.

The previous prime is 16772257. The next prime is 16772263. The reversal of 16772260 is 6227761.

It is an interprime number because it is at equal distance from previous prime (16772257) and next prime (16772263).

It can be written as a sum of positive squares in 2 ways, for example, as 5089536 + 11682724 = 2256^2 + 3418^2 .

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (16772263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419287 + ... + 419326.

It is an arithmetic number, because the mean of its divisors is an integer number (2935149).

Almost surely, 216772260 is an apocalyptic number.

16772260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16772260 is an abundant number, since it is smaller than the sum of its proper divisors (18449528).

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

16772260 is a wasteful number, since it uses less digits than its factorization.

16772260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838622 (or 838620 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 16772260 is about 4095.3949748467. The cubic root of 16772260 is about 255.9747899980.

It can be divided in two parts, 167 and 72260, that added together give a palindrome (72427).

The spelling of 16772260 in words is "sixteen million, seven hundred seventy-two thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 838613 1677226 3354452 4193065 8386130 16772260