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228180152 = 23208313693
BaseRepresentation
bin11011001100111…
…00000010111000
3120220100202022202
431212130002320
5431403231102
634350405332
75440333154
oct1546340270
9526322282
10228180152
11107890142
1264500848
1338372b55
142243a064
1515073e02
hexd99c0b8

228180152 has 16 divisors (see below), whose sum is σ = 428074440. Its totient is φ = 114026976.

The previous prime is 228180151. The next prime is 228180179. The reversal of 228180152 is 251081822.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228180151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9818 + ... + 23510.

Almost surely, 2228180152 is an apocalyptic number.

It is an amenable number.

228180152 is a deficient number, since it is larger than the sum of its proper divisors (199894288).

228180152 is a wasteful number, since it uses less digits than its factorization.

228180152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15782 (or 15778 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 228180152 is about 15105.6331214551. The cubic root of 228180152 is about 611.0723340048.

The spelling of 228180152 in words is "two hundred twenty-eight million, one hundred eighty thousand, one hundred fifty-two".

Divisors: 1 2 4 8 2083 4166 8332 13693 16664 27386 54772 109544 28522519 57045038 114090076 228180152