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10812842 = 25406421
BaseRepresentation
bin101001001111…
…110110101010
3202100100102122
4221033312222
510232002332
61023431242
7160623215
oct51176652
922310378
1010812842
116115937
123755522
132317841
14161677c
15e38c12
hexa4fdaa

10812842 has 4 divisors (see below), whose sum is σ = 16219266. Its totient is φ = 5406420.

The previous prime is 10812839. The next prime is 10812859. The reversal of 10812842 is 24821801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24821801 = 40960689.

It can be written as a sum of positive squares in only one way, i.e., 7349521 + 3463321 = 2711^2 + 1861^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2703209 + ... + 2703212.

Almost surely, 210812842 is an apocalyptic number.

10812842 is a deficient number, since it is larger than the sum of its proper divisors (5406424).

10812842 is an equidigital number, since it uses as much as digits as its factorization.

10812842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5406423.

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 10812842 is about 3288.2886126373. The cubic root of 10812842 is about 221.1294669426.

The spelling of 10812842 in words is "ten million, eight hundred twelve thousand, eight hundred forty-two".

Divisors: 1 2 5406421 10812842