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10908121 = 71558303
BaseRepresentation
bin101001100111…
…000111011001
3202112012010111
4221213013121
510243024441
61025444321
7161501050
oct51470731
922465114
1010908121
116180484
1237a06a1
13234c013
14163d397
15e57081
hexa671d9

10908121 has 4 divisors (see below), whose sum is σ = 12466432. Its totient is φ = 9349812.

The previous prime is 10908119. The next prime is 10908137. The reversal of 10908121 is 12180901.

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 10908121 - 21 = 10908119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10908092 and 10908101.

It is not an unprimeable number, because it can be changed into a prime (10908151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 779145 + ... + 779158.

It is an arithmetic number, because the mean of its divisors is an integer number (3116608).

Almost surely, 210908121 is an apocalyptic number.

It is an amenable number.

10908121 is a deficient number, since it is larger than the sum of its proper divisors (1558311).

10908121 is an equidigital number, since it uses as much as digits as its factorization.

10908121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1558310.

The product of its (nonzero) digits is 144, while the sum is 22.

The square root of 10908121 is about 3302.7444648353. The cubic root of 10908121 is about 221.7770737865. Note that the first 3 decimals are identical.

The spelling of 10908121 in words is "ten million, nine hundred eight thousand, one hundred twenty-one".

Divisors: 1 7 1558303 10908121