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223470379 = 1120315489
BaseRepresentation
bin11010101000111…
…10001100101011
3120120111110201201
431110132030223
5424202023004
634101425031
75352316066
oct1524361453
9516443651
10223470379
11105163670
1262a0b177
13373b41c2
14219718dd
15149436a4
hexd51e32b

223470379 has 4 divisors (see below), whose sum is σ = 243785880. Its totient is φ = 203154880.

The previous prime is 223470353. The next prime is 223470397. The reversal of 223470379 is 973074322.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 223470379 - 27 = 223470251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223470319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10157734 + ... + 10157755.

It is an arithmetic number, because the mean of its divisors is an integer number (60946470).

Almost surely, 2223470379 is an apocalyptic number.

223470379 is a deficient number, since it is larger than the sum of its proper divisors (20315501).

223470379 is a wasteful number, since it uses less digits than its factorization.

223470379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20315500.

The product of its (nonzero) digits is 63504, while the sum is 37.

The square root of 223470379 is about 14948.9256804628. The cubic root of 223470379 is about 606.8387734070.

The spelling of 223470379 in words is "two hundred twenty-three million, four hundred seventy thousand, three hundred seventy-nine".

Divisors: 1 11 20315489 223470379