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234464420 = 22529404249
BaseRepresentation
bin11011111100110…
…10010010100100
3121100012000201102
431332122102210
5440010330140
635133215232
75544625511
oct1576322244
9540160642
10234464420
11110392653
1266631518
1339763358
14231d4308
15158b5e15
hexdf9a4a4

234464420 has 24 divisors (see below), whose sum is σ = 509355000. Its totient is φ = 90551552.

The previous prime is 234464413. The next prime is 234464429. The reversal of 234464420 is 24464432.

It can be written as a sum of positive squares in 4 ways, for example, as 91853056 + 142611364 = 9584^2 + 11942^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (234464429) 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, 201545 + ... + 202704.

It is an arithmetic number, because the mean of its divisors is an integer number (21223125).

Almost surely, 2234464420 is an apocalyptic number.

234464420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234464420 is an abundant number, since it is smaller than the sum of its proper divisors (274890580).

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

234464420 is a wasteful number, since it uses less digits than its factorization.

234464420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404287 (or 404285 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

The square root of 234464420 is about 15312.2310588627. The cubic root of 234464420 is about 616.6314188115.

The spelling of 234464420 in words is "two hundred thirty-four million, four hundred sixty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 404249 808498 1616996 2021245 4042490 8084980 11723221 23446442 46892884 58616105 117232210 234464420