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228023700 = 22352760079
BaseRepresentation
bin11011001011101…
…01110110010100
3120220001210201020
431211311312110
5431333224300
634343201140
75436112062
oct1545656624
9526053636
10228023700
11107793643
12644461b0
1338319888
14223d9032
15150428a0
hexd975d94

228023700 has 36 divisors (see below), whose sum is σ = 659749440. Its totient is φ = 60806240.

The previous prime is 228023689. The next prime is 228023701. The reversal of 228023700 is 7320822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228023701) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 379740 + ... + 380339.

Almost surely, 2228023700 is an apocalyptic number.

228023700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228023700 is an abundant number, since it is smaller than the sum of its proper divisors (431725740).

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

228023700 is a wasteful number, since it uses less digits than its factorization.

228023700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760096 (or 760089 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 228023700 is about 15100.4536355700. The cubic root of 228023700 is about 610.9326412423.

The spelling of 228023700 in words is "two hundred twenty-eight million, twenty-three thousand, seven hundred".

Divisors: 1 2 3 4 5 6 10 12 15 20 25 30 50 60 75 100 150 300 760079 1520158 2280237 3040316 3800395 4560474 7600790 9120948 11401185 15201580 19001975 22802370 38003950 45604740 57005925 76007900 114011850 228023700