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227481428 = 22118747911
BaseRepresentation
bin11011000111100…
…01011101010100
3120212001020212002
431203301131110
5431213401203
634323414432
75431363106
oct1543613524
9525036762
10227481428
11107453189
1264224418
1338189ac5
14222d7576
1514e86d88
hexd8f1754

227481428 has 12 divisors (see below), whose sum is σ = 398436192. Its totient is φ = 113642520.

The previous prime is 227481409. The next prime is 227481461. The reversal of 227481428 is 824184722.

It is a junction number, because it is equal to n+sod(n) for n = 227481391 and 227481400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19208 + ... + 28703.

It is an arithmetic number, because the mean of its divisors is an integer number (33203016).

Almost surely, 2227481428 is an apocalyptic number.

It is an amenable number.

227481428 is a deficient number, since it is larger than the sum of its proper divisors (170954764).

227481428 is a wasteful number, since it uses less digits than its factorization.

227481428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49102 (or 49100 counting only the distinct ones).

The product of its digits is 57344, while the sum is 38.

The square root of 227481428 is about 15082.4874606280. The cubic root of 227481428 is about 610.4479626293.

The spelling of 227481428 in words is "two hundred twenty-seven million, four hundred eighty-one thousand, four hundred twenty-eight".

Divisors: 1 2 4 1187 2374 4748 47911 95822 191644 56870357 113740714 227481428