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229375420 = 22519975743
BaseRepresentation
bin11011010101111…
…11110110111100
3120222121110220221
431222333312330
5432210003140
634432151124
75453442001
oct1552776674
9528543827
10229375420
1110852716a
12649984a4
13386a0c01
142266b8a8
151520d14a
hexdabfdbc

229375420 has 24 divisors (see below), whose sum is σ = 482013504. Its totient is φ = 91688256.

The previous prime is 229375411. The next prime is 229375427. The reversal of 229375420 is 24573922.

It is a happy number.

It is a super-2 number, since 2×2293754202 = 105226166600352800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229375427) 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, 37069 + ... + 42811.

It is an arithmetic number, because the mean of its divisors is an integer number (20083896).

Almost surely, 2229375420 is an apocalyptic number.

229375420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229375420 is an abundant number, since it is smaller than the sum of its proper divisors (252638084).

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

229375420 is a wasteful number, since it uses less digits than its factorization.

229375420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7749 (or 7747 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 229375420 is about 15145.1450966968. The cubic root of 229375420 is about 612.1374625362.

The spelling of 229375420 in words is "two hundred twenty-nine million, three hundred seventy-five thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 1997 3994 5743 7988 9985 11486 19970 22972 28715 39940 57430 114860 11468771 22937542 45875084 57343855 114687710 229375420