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16813097 = 72401871
BaseRepresentation
bin100000000100…
…0110000101001
31011122012020022
41000020300221
513301004342
61400210225
7262623530
oct100106051
934565208
1016813097
119543a24
125769975
1336389a2
142339317
1517219d2
hex1008c29

16813097 has 4 divisors (see below), whose sum is σ = 19214976. Its totient is φ = 14411220.

The previous prime is 16813091. The next prime is 16813099. The reversal of 16813097 is 79031861.

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 16813097 - 26 = 16813033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16813091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1200929 + ... + 1200942.

It is an arithmetic number, because the mean of its divisors is an integer number (4803744).

Almost surely, 216813097 is an apocalyptic number.

It is an amenable number.

16813097 is a deficient number, since it is larger than the sum of its proper divisors (2401879).

16813097 is an equidigital number, since it uses as much as digits as its factorization.

16813097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2401878.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 16813097 is about 4100.3776655328. The cubic root of 16813097 is about 256.1823702550.

The spelling of 16813097 in words is "sixteen million, eight hundred thirteen thousand, ninety-seven".

Divisors: 1 7 2401871 16813097