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20230353 = 32112131429
BaseRepresentation
bin100110100101…
…1000011010001
31102001210211100
41031023003101
520134332403
62001335013
7333645423
oct115130321
942053740
1020230353
1110468400
126937469
134264230
142988813
151b992a3
hex134b0d1

20230353 has 36 divisors (see below), whose sum is σ = 34614580. Its totient is φ = 11309760.

The previous prime is 20230303. The next prime is 20230361. The reversal of 20230353 is 35303202.

It can be written as a sum of positive squares in 2 ways, for example, as 2108304 + 18122049 = 1452^2 + 4257^2 .

It is not a de Polignac number, because 20230353 - 29 = 20229841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20230303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 13443 + ... + 14871.

Almost surely, 220230353 is an apocalyptic number.

It is an amenable number.

20230353 is a deficient number, since it is larger than the sum of its proper divisors (14384227).

20230353 is a wasteful number, since it uses less digits than its factorization.

20230353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1470 (or 1456 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 18.

The square root of 20230353 is about 4497.8164702442. The cubic root of 20230353 is about 272.4799098619.

Adding to 20230353 its reverse (35303202), we get a palindrome (55533555).

The spelling of 20230353 in words is "twenty million, two hundred thirty thousand, three hundred fifty-three".

Divisors: 1 3 9 11 13 33 39 99 117 121 143 363 429 1089 1287 1429 1573 4287 4719 12861 14157 15719 18577 47157 55731 141471 167193 172909 204347 518727 613041 1556181 1839123 2247817 6743451 20230353