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10772257 = 23468359
BaseRepresentation
bin101001000101…
…111100100001
3202021021202111
4221011330201
510224203012
61022515321
7160363666
oct51057441
922237674
1010772257
1160983a1
123735b41
132302222
141605a6d
15e2bba7
hexa45f21

10772257 has 4 divisors (see below), whose sum is σ = 11240640. Its totient is φ = 10303876.

The previous prime is 10772243. The next prime is 10772263. The reversal of 10772257 is 75227701.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75227701 = 611233241.

It is a cyclic number.

It is not a de Polignac number, because 10772257 - 27 = 10772129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10772207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234157 + ... + 234202.

It is an arithmetic number, because the mean of its divisors is an integer number (2810160).

Almost surely, 210772257 is an apocalyptic number.

It is an amenable number.

10772257 is a deficient number, since it is larger than the sum of its proper divisors (468383).

10772257 is an equidigital number, since it uses as much as digits as its factorization.

10772257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468382.

The product of its (nonzero) digits is 6860, while the sum is 31.

The square root of 10772257 is about 3282.1116678139. Note that the first 3 decimals coincide. The cubic root of 10772257 is about 220.8524570915.

Adding to 10772257 its reverse (75227701), we get a palindrome (85999958).

The spelling of 10772257 in words is "ten million, seven hundred seventy-two thousand, two hundred fifty-seven".

Divisors: 1 23 468359 10772257