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229344140 = 22561187987
BaseRepresentation
bin11011010101110…
…00001110001100
3120222112220000102
431222320032030
5432203003030
634431350232
75453251544
oct1552701614
9528486012
10229344140
11108505713
1264982378
133868c8bc
1422660324
1515203c45
hexdab838c

229344140 has 24 divisors (see below), whose sum is σ = 489520752. Its totient is φ = 90233280.

The previous prime is 229344133. The next prime is 229344163. The reversal of 229344140 is 41443922.

229344140 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 7 ways as a sum of consecutive naturals, for example, 92774 + ... + 95213.

It is an arithmetic number, because the mean of its divisors is an integer number (20396698).

Almost surely, 2229344140 is an apocalyptic number.

229344140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229344140 is an abundant number, since it is smaller than the sum of its proper divisors (260176612).

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

229344140 is a wasteful number, since it uses less digits than its factorization.

229344140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188057 (or 188055 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 229344140 is about 15144.1123873273. The cubic root of 229344140 is about 612.1096354768.

The spelling of 229344140 in words is "two hundred twenty-nine million, three hundred forty-four thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 61 122 244 305 610 1220 187987 375974 751948 939935 1879870 3759740 11467207 22934414 45868828 57336035 114672070 229344140