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109872874 = 254936437
BaseRepresentation
bin1101000110010…
…00011011101010
321122202010020201
412203020123222
5211111412444
614522542414
72502622036
oct643103352
9248663221
10109872874
1157025131
1230967a0a
13199bc547
14108411c6
1599a4dd4
hex68c86ea

109872874 has 4 divisors (see below), whose sum is σ = 164809314. Its totient is φ = 54936436.

The previous prime is 109872871. The next prime is 109872901. The reversal of 109872874 is 478278901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 478278901 = 1728134053.

It can be written as a sum of positive squares in only one way, i.e., 104550625 + 5322249 = 10225^2 + 2307^2 .

It is not an unprimeable number, because it can be changed into a prime (109872871) 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 as a sum of consecutive naturals, namely, 27468217 + ... + 27468220.

Almost surely, 2109872874 is an apocalyptic number.

109872874 is a deficient number, since it is larger than the sum of its proper divisors (54936440).

109872874 is an equidigital number, since it uses as much as digits as its factorization.

109872874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54936439.

The product of its (nonzero) digits is 225792, while the sum is 46.

The square root of 109872874 is about 10482.0262354184. The cubic root of 109872874 is about 478.9573345424.

It can be divided in two parts, 10987 and 2874, that added together give a triangular number (13861 = T166).

The spelling of 109872874 in words is "one hundred nine million, eight hundred seventy-two thousand, eight hundred seventy-four".

Divisors: 1 2 54936437 109872874