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140230422 = 23231475347
BaseRepresentation
bin10000101101110…
…11111100010110
3100202212102222100
420112323330112
5241344333142
621525342530
73321640023
oct1026737426
9322772870
10140230422
117217a212
123ab67a46
132308b1a7
14148a454a
15c49eb4c
hex85bbf16

140230422 has 48 divisors (see below), whose sum is σ = 320366592. Its totient is φ = 44264880.

The previous prime is 140230417. The next prime is 140230427. The reversal of 140230422 is 224032041.

140230422 is a `hidden beast` number, since 14 + 0 + 230 + 422 = 666.

It is an interprime number because it is at equal distance from previous prime (140230417) and next prime (140230427).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 140230395 and 140230404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140230427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23553 + ... + 28899.

It is an arithmetic number, because the mean of its divisors is an integer number (6674304).

Almost surely, 2140230422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140230422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160183296).

140230422 is an abundant number, since it is smaller than the sum of its proper divisors (180136170).

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

140230422 is a wasteful number, since it uses less digits than its factorization.

140230422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5433 (or 5430 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 140230422 is about 11841.8926696707. The cubic root of 140230422 is about 519.5341266295.

Adding to 140230422 its reverse (224032041), we get a palindrome (364262463).

The spelling of 140230422 in words is "one hundred forty million, two hundred thirty thousand, four hundred twenty-two".

Divisors: 1 2 3 6 9 18 31 47 62 93 94 141 186 279 282 423 558 846 1457 2914 4371 5347 8742 10694 13113 16041 26226 32082 48123 96246 165757 251309 331514 497271 502618 753927 994542 1491813 1507854 2261781 2983626 4523562 7790579 15581158 23371737 46743474 70115211 140230422