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229780342 = 21114297309
BaseRepresentation
bin11011011001000…
…10101101110110
3121000101001101001
431230202231312
5432310432332
634444553514
75460046351
oct1554425566
9530331331
10229780342
11108783410
1264b5289a
13387b32cc
1422735298
151528d0e7
hexdb22b76

229780342 has 16 divisors (see below), whose sum is σ = 376318800. Its totient is φ = 104358240.

The previous prime is 229780337. The next prime is 229780349. The reversal of 229780342 is 243087922.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229780349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27784 + ... + 35092.

It is an arithmetic number, because the mean of its divisors is an integer number (23519925).

Almost surely, 2229780342 is an apocalyptic number.

229780342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

229780342 is a deficient number, since it is larger than the sum of its proper divisors (146538458).

229780342 is a wasteful number, since it uses less digits than its factorization.

229780342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8751.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 229780342 is about 15158.5072484068. The cubic root of 229780342 is about 612.4974578265.

The spelling of 229780342 in words is "two hundred twenty-nine million, seven hundred eighty thousand, three hundred forty-two".

Divisors: 1 2 11 22 1429 2858 7309 14618 15719 31438 80399 160798 10444561 20889122 114890171 229780342