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10873861 = 73148957
BaseRepresentation
bin101001011110…
…110000000101
3202110110010121
4221132300011
510240430421
61025021541
7161266135
oct51366005
922413117
1010873861
116157769
1237848b1
13233954b
141630ac5
15e4bd41
hexa5ec05

10873861 has 4 divisors (see below), whose sum is σ = 11022892. Its totient is φ = 10724832.

The previous prime is 10873847. The next prime is 10873879. The reversal of 10873861 is 16837801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16837801 = 28159921.

It can be written as a sum of positive squares in 2 ways, for example, as 5085025 + 5788836 = 2255^2 + 2406^2 .

It is a cyclic number.

It is not a de Polignac number, because 10873861 - 211 = 10871813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10873801) 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, 74406 + ... + 74551.

It is an arithmetic number, because the mean of its divisors is an integer number (2755723).

Almost surely, 210873861 is an apocalyptic number.

It is an amenable number.

10873861 is a deficient number, since it is larger than the sum of its proper divisors (149031).

10873861 is an equidigital number, since it uses as much as digits as its factorization.

10873861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149030.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 10873861 is about 3297.5537903118. The cubic root of 10873861 is about 221.5446460051.

The spelling of 10873861 in words is "ten million, eight hundred seventy-three thousand, eight hundred sixty-one".

Divisors: 1 73 148957 10873861