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10308861 = 321145429
BaseRepresentation
bin100111010100…
…110011111101
3201101202002200
4213110303331
510114340421
61004542113
7153423663
oct47246375
921352080
1010308861
115901222
123551939
13219c324
141524c33
15d89726
hex9d4cfd

10308861 has 6 divisors (see below), whose sum is σ = 14890590. Its totient is φ = 6872568.

The previous prime is 10308847. The next prime is 10308929. The reversal of 10308861 is 16880301.

It can be written as a sum of positive squares in only one way, i.e., 10304100 + 4761 = 3210^2 + 69^2 .

It is not a de Polignac number, because 10308861 - 27 = 10308733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10308061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 572706 + ... + 572723.

It is an arithmetic number, because the mean of its divisors is an integer number (2481765).

Almost surely, 210308861 is an apocalyptic number.

It is an amenable number.

10308861 is a deficient number, since it is larger than the sum of its proper divisors (4581729).

10308861 is a wasteful number, since it uses less digits than its factorization.

10308861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145435 (or 1145432 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 10308861 is about 3210.7415031422. The cubic root of 10308861 is about 217.6390866227.

The spelling of 10308861 in words is "ten million, three hundred eight thousand, eight hundred sixty-one".

Divisors: 1 3 9 1145429 3436287 10308861