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228202338 = 23713417953
BaseRepresentation
bin11011001101000…
…01011101100010
3120220101212202110
431212201131202
5431404433323
634351100150
75440454640
oct1546413542
9526355673
10228202338
111078a5881
1264511656
133837cc90
1422444190
151507a793
hexd9a1762

228202338 has 32 divisors (see below), whose sum is σ = 561730176. Its totient is φ = 60185088.

The previous prime is 228202321. The next prime is 228202361. The reversal of 228202338 is 833202822.

228202338 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208431 + ... + 209522.

It is an arithmetic number, because the mean of its divisors is an integer number (17554068).

Almost surely, 2228202338 is an apocalyptic number.

228202338 is an abundant number, since it is smaller than the sum of its proper divisors (333527838).

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

228202338 is a wasteful number, since it uses less digits than its factorization.

228202338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417978.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 228202338 is about 15106.3674654101. The cubic root of 228202338 is about 611.0921382564.

It can be divided in two parts, 228 and 202338, that added together give a triangular number (202566 = T636).

The spelling of 228202338 in words is "two hundred twenty-eight million, two hundred two thousand, three hundred thirty-eight".

Divisors: 1 2 3 6 7 13 14 21 26 39 42 78 91 182 273 546 417953 835906 1253859 2507718 2925671 5433389 5851342 8777013 10866778 16300167 17554026 32600334 38033723 76067446 114101169 228202338