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40036230 = 232513191801
BaseRepresentation
bin1001100010111…
…0011110000110
32210100001101100
42120232132012
540222124410
63550040530
7664205463
oct230563606
983301340
1040036230
11206658a3
12114a9146
1383aa1a0
14546266a
1537ac8c0
hex262e786

40036230 has 96 divisors (see below), whose sum is σ = 118067040. Its totient is φ = 9331200.

The previous prime is 40036189. The next prime is 40036247. The reversal of 40036230 is 3263004.

40036230 is a `hidden beast` number, since 40 + 0 + 3 + 623 + 0 = 666.

40036230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×400362302 = 3205799425225800, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 21330 + ... + 23130.

It is an arithmetic number, because the mean of its divisors is an integer number (1229865).

Almost surely, 240036230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40036230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59033520).

40036230 is an abundant number, since it is smaller than the sum of its proper divisors (78030810).

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

40036230 is a wasteful number, since it uses less digits than its factorization.

40036230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1846 (or 1843 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 40036230 is about 6327.4189050513. The cubic root of 40036230 is about 342.0984122245.

Adding to 40036230 its reverse (3263004), we get a palindrome (43299234).

The spelling of 40036230 in words is "forty million, thirty-six thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 13 15 18 19 26 30 38 39 45 57 65 78 90 95 114 117 130 171 190 195 234 247 285 342 390 494 570 585 741 855 1170 1235 1482 1710 1801 2223 2470 3602 3705 4446 5403 7410 9005 10806 11115 16209 18010 22230 23413 27015 32418 34219 46826 54030 68438 70239 81045 102657 117065 140478 162090 171095 205314 210717 234130 307971 342190 351195 421434 444847 513285 615942 702390 889694 1026570 1053585 1334541 1539855 2107170 2224235 2669082 3079710 4003623 4448470 6672705 8007246 13345410 20018115 40036230