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10099481 = 71442783
BaseRepresentation
bin100110100001…
…101100011001
3201000002212212
4212201230121
510041140411
61000244505
7151562360
oct46415431
921002785
1010099481
115778987
123470735
132127c32
1414ac7d7
15d4768b
hex9a1b19

10099481 has 4 divisors (see below), whose sum is σ = 11542272. Its totient is φ = 8656692.

The previous prime is 10099471. The next prime is 10099499. The reversal of 10099481 is 18499001.

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: 18499001 = 37499973.

It is a cyclic number.

It is not a de Polignac number, because 10099481 - 210 = 10098457 is a prime.

It is a super-2 number, since 2×100994812 = 203999032938722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10099451) 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, 721385 + ... + 721398.

It is an arithmetic number, because the mean of its divisors is an integer number (2885568).

Almost surely, 210099481 is an apocalyptic number.

It is an amenable number.

10099481 is a deficient number, since it is larger than the sum of its proper divisors (1442791).

10099481 is an equidigital number, since it uses as much as digits as its factorization.

10099481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1442790.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 10099481 is about 3177.9680615135. The cubic root of 10099481 is about 216.1555307016.

The spelling of 10099481 in words is "ten million, ninety-nine thousand, four hundred eighty-one".

Divisors: 1 7 1442783 10099481