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226195939 = 1091207329
BaseRepresentation
bin11010111101101…
…11100111100011
3120202121221111101
431132313213203
5430401232224
634240055231
75414430244
oct1536674743
9522557441
10226195939
111067553a2
1263904517
1337b29968
1422080ccb
1514cd1044
hexd7b79e3

226195939 has 4 divisors (see below), whose sum is σ = 226404360. Its totient is φ = 225987520.

The previous prime is 226195927. The next prime is 226195979. The reversal of 226195939 is 939591622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 939591622 = 2469795811.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-226195939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226195919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102574 + ... + 104755.

It is an arithmetic number, because the mean of its divisors is an integer number (56601090).

Almost surely, 2226195939 is an apocalyptic number.

226195939 is a deficient number, since it is larger than the sum of its proper divisors (208421).

226195939 is a wasteful number, since it uses less digits than its factorization.

226195939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208420.

The product of its digits is 262440, while the sum is 46.

The square root of 226195939 is about 15039.8118006842. The cubic root of 226195939 is about 609.2959170097.

The spelling of 226195939 in words is "two hundred twenty-six million, one hundred ninety-five thousand, nine hundred thirty-nine".

Divisors: 1 1091 207329 226195939