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10274981 = 31331451
BaseRepresentation
bin100111001100…
…100010100101
3201100000121212
4213030202211
510112244411
61004121205
7153223133
oct47144245
921300555
1010274981
115888822
123536205
132189a92
141516753
15d7e68b
hex9cc8a5

10274981 has 4 divisors (see below), whose sum is σ = 10606464. Its totient is φ = 9943500.

The previous prime is 10274963. The next prime is 10275037. The reversal of 10274981 is 18947201.

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.

It is a cyclic number.

It is not a de Polignac number, because 10274981 - 210 = 10273957 is a prime.

It is a super-2 number, since 2×102749812 = 211150469100722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10274941) 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, 165695 + ... + 165756.

It is an arithmetic number, because the mean of its divisors is an integer number (2651616).

Almost surely, 210274981 is an apocalyptic number.

It is an amenable number.

10274981 is a deficient number, since it is larger than the sum of its proper divisors (331483).

10274981 is an equidigital number, since it uses as much as digits as its factorization.

10274981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331482.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 10274981 is about 3205.4611212741. The cubic root of 10274981 is about 217.4004018378.

The spelling of 10274981 in words is "ten million, two hundred seventy-four thousand, nine hundred eighty-one".

Divisors: 1 31 331451 10274981