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227713945 = 52979103193
BaseRepresentation
bin11011001001010…
…10001110011001
3120212111001210211
431210222032121
5431243321240
634332411121
75433352024
oct1544521631
9525431724
10227713945
111075a1948
1264316aa1
133823b8a4
14223581bb
1514ed0bea
hexd92a399

227713945 has 32 divisors (see below), whose sum is σ = 290534400. Its totient is φ = 171085824.

The previous prime is 227713931. The next prime is 227713951. The reversal of 227713945 is 549317722.

227713945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-227713945 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 227713898 and 227713907.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1179769 + ... + 1179961.

It is an arithmetic number, because the mean of its divisors is an integer number (9079200).

Almost surely, 2227713945 is an apocalyptic number.

It is an amenable number.

227713945 is a deficient number, since it is larger than the sum of its proper divisors (62820455).

227713945 is a wasteful number, since it uses less digits than its factorization.

227713945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409.

The product of its digits is 105840, while the sum is 40.

The square root of 227713945 is about 15090.1936700627. The cubic root of 227713945 is about 610.6558787906.

The spelling of 227713945 in words is "two hundred twenty-seven million, seven hundred thirteen thousand, nine hundred forty-five".

Divisors: 1 5 29 79 103 145 193 395 515 965 2291 2987 5597 8137 11455 14935 15247 19879 27985 40685 76235 99395 235973 442163 576491 1179865 1570441 2210815 2882455 7852205 45542789 227713945