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10189004909 = 12897904581
BaseRepresentation
bin10010111110100111…
…11110000001101101
3222022002102002010012
421133103332001231
5131331341124114
64403013423005
7510331053446
oct113723760155
928262362105
1010189004909
114359478216
121b8433aa65
13c64bc4cb5
146c92c22cd
153e979463e
hex25f4fe06d

10189004909 has 4 divisors (see below), whose sum is σ = 10196910780. Its totient is φ = 10181099040.

The previous prime is 10189004879. The next prime is 10189004939. The reversal of 10189004909 is 90940098101.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (10189004879) and next prime (10189004939).

It can be written as a sum of positive squares in 2 ways, for example, as 4788224809 + 5400780100 = 69197^2 + 73490^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10189004909 is a prime.

It is a super-3 number, since 3×101890049093 (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10189004939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3951002 + ... + 3953579.

It is an arithmetic number, because the mean of its divisors is an integer number (2549227695).

Almost surely, 210189004909 is an apocalyptic number.

It is an amenable number.

10189004909 is a deficient number, since it is larger than the sum of its proper divisors (7905871).

10189004909 is an equidigital number, since it uses as much as digits as its factorization.

10189004909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7905870.

The product of its (nonzero) digits is 23328, while the sum is 41.

The spelling of 10189004909 in words is "ten billion, one hundred eighty-nine million, four thousand, nine hundred nine".

Divisors: 1 1289 7904581 10189004909