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140244230 = 25718111069
BaseRepresentation
bin10000101101111…
…11010100000110
3100202220010220202
420112333110012
5241400303410
621525530502
73322025210
oct1026772406
9322803822
10140244230
1172189625
123ab73a32
1323094569
14148a95b0
15c4a3ca5
hex85bf506

140244230 has 32 divisors (see below), whose sum is σ = 290122560. Its totient is φ = 47813760.

The previous prime is 140244229. The next prime is 140244253. The reversal of 140244230 is 32442041.

140244230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7136 + ... + 18204.

It is an arithmetic number, because the mean of its divisors is an integer number (9066330).

Almost surely, 2140244230 is an apocalyptic number.

140244230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140244230 is an abundant number, since it is smaller than the sum of its proper divisors (149878330).

140244230 is a wasteful number, since it uses less digits than its factorization.

140244230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11264.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 140244230 is about 11842.4756702304. The cubic root of 140244230 is about 519.5511783069.

Adding to 140244230 its reverse (32442041), we get a palindrome (172686271).

The spelling of 140244230 in words is "one hundred forty million, two hundred forty-four thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 181 362 905 1267 1810 2534 6335 11069 12670 22138 55345 77483 110690 154966 387415 774830 2003489 4006978 10017445 14024423 20034890 28048846 70122115 140244230