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228136170 = 23527132803
BaseRepresentation
bin11011001100100…
…01010011101010
3120220021111222210
431212101103222
5431400324140
634345425550
75440061013
oct1546212352
9526244883
10228136170
11107860099
126449b2b6
1338358b22
142242800a
1515065d80
hexd9914ea

228136170 has 32 divisors (see below), whose sum is σ = 547924032. Its totient is φ = 60792192.

The previous prime is 228136163. The next prime is 228136189. The reversal of 228136170 is 71631822.

228136170 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2281361702 = 104092224124537800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 79989 + ... + 82791.

It is an arithmetic number, because the mean of its divisors is an integer number (17122626).

Almost surely, 2228136170 is an apocalyptic number.

228136170 is an abundant number, since it is smaller than the sum of its proper divisors (319787862).

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

228136170 is a wasteful number, since it uses less digits than its factorization.

228136170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5526.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 228136170 is about 15104.1772367779. The cubic root of 228136170 is about 611.0330698384.

Adding to 228136170 its reverse (71631822), we get a palindrome (299767992).

The spelling of 228136170 in words is "two hundred twenty-eight million, one hundred thirty-six thousand, one hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 2713 2803 5426 5606 8139 8409 13565 14015 16278 16818 27130 28030 40695 42045 81390 84090 7604539 15209078 22813617 38022695 45627234 76045390 114068085 228136170