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228333516 = 223137138889
BaseRepresentation
bin11011001110000…
…01011111001100
3120220122112200220
431213001133030
5431423133031
634353551340
75441542245
oct1547013714
9526575626
10228333516
11107985394
1264575550
13383c78b8
1422479ccc
15150a4596
hexd9c17cc

228333516 has 24 divisors (see below), whose sum is σ = 536670960. Its totient is φ = 75555072.

The previous prime is 228333467. The next prime is 228333517. The reversal of 228333516 is 615333822.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (228333517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67801 + ... + 71088.

It is an arithmetic number, because the mean of its divisors is an integer number (22361290).

Almost surely, 2228333516 is an apocalyptic number.

It is an amenable number.

228333516 is an abundant number, since it is smaller than the sum of its proper divisors (308337444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228333516 is a wasteful number, since it uses less digits than its factorization.

228333516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139033 (or 139031 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 228333516 is about 15110.7086531374. The cubic root of 228333516 is about 611.2092075939.

The spelling of 228333516 in words is "two hundred twenty-eight million, three hundred thirty-three thousand, five hundred sixteen".

Divisors: 1 2 3 4 6 12 137 274 411 548 822 1644 138889 277778 416667 555556 833334 1666668 19027793 38055586 57083379 76111172 114166758 228333516