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23430270 = 2354143443
BaseRepresentation
bin101100101100…
…0010001111110
31122002101021210
41121120101332
521444232040
62154105250
7403103553
oct131302176
948071253
1023430270
1112253566
127a1b226
134b14886
14317ca2a
1520cc480
hex165847e

23430270 has 64 divisors (see below), whose sum is σ = 59076864. Its totient is φ = 5940480.

The previous prime is 23430263. The next prime is 23430271. The reversal of 23430270 is 7203432.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23430271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52669 + ... + 53111.

It is an arithmetic number, because the mean of its divisors is an integer number (923076).

Almost surely, 223430270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23430270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29538432).

23430270 is an abundant number, since it is smaller than the sum of its proper divisors (35646594).

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

23430270 is a wasteful number, since it uses less digits than its factorization.

23430270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537.

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 23430270 is about 4840.4824139749. The cubic root of 23430270 is about 286.1491308245.

The spelling of 23430270 in words is "twenty-three million, four hundred thirty thousand, two hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 41 43 82 86 123 129 205 215 246 258 410 430 443 615 645 886 1230 1290 1329 1763 2215 2658 3526 4430 5289 6645 8815 10578 13290 17630 18163 19049 26445 36326 38098 52890 54489 57147 90815 95245 108978 114294 181630 190490 272445 285735 544890 571470 781009 1562018 2343027 3905045 4686054 7810090 11715135 23430270