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368872109 = 880341903
BaseRepresentation
bin10101111111001…
…000101010101101
3221201002122101222
4111333020222231
51223412401414
6100334113125
712066234614
oct2577105255
9851078358
10368872109
1117a245091
12a364b7a5
135b563128
1436dc087b
15225b568e
hex15fc8aad

368872109 has 4 divisors (see below), whose sum is σ = 368922816. Its totient is φ = 368821404.

The previous prime is 368872081. The next prime is 368872111. The reversal of 368872109 is 901278863.

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 368872109 - 216 = 368806573 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 368872109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (368875109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12149 + ... + 29754.

It is an arithmetic number, because the mean of its divisors is an integer number (92230704).

Almost surely, 2368872109 is an apocalyptic number.

It is an amenable number.

368872109 is a deficient number, since it is larger than the sum of its proper divisors (50707).

368872109 is an equidigital number, since it uses as much as digits as its factorization.

368872109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50706.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 368872109 is about 19206.0435540483. The cubic root of 368872109 is about 717.1752160667.

The spelling of 368872109 in words is "three hundred sixty-eight million, eight hundred seventy-two thousand, one hundred nine".

Divisors: 1 8803 41903 368872109