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40230030 = 23519163433
BaseRepresentation
bin1001100101110…
…1110010001110
32210200220020010
42121131302032
540244330110
63554134050
7665643501
oct231356216
983626203
1040230030
1120788465
1211581326
138447469
1454b3138
1537ea020
hex265dc8e

40230030 has 64 divisors (see below), whose sum is σ = 102493440. Its totient is φ = 10077696.

The previous prime is 40229963. The next prime is 40230031. The reversal of 40230030 is 3003204.

It is a junction number, because it is equal to n+sod(n) for n = 40229988 and 40230015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40230031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92694 + ... + 93126.

It is an arithmetic number, because the mean of its divisors is an integer number (1601460).

Almost surely, 240230030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40230030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51246720).

40230030 is an abundant number, since it is smaller than the sum of its proper divisors (62263410).

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

40230030 is a wasteful number, since it uses less digits than its factorization.

40230030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625.

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 40230030 is about 6342.7147184782. The cubic root of 40230030 is about 342.6495129282.

Adding to 40230030 its reverse (3003204), we get a palindrome (43233234).

The spelling of 40230030 in words is "forty million, two hundred thirty thousand, thirty".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 95 114 163 190 285 326 433 489 570 815 866 978 1299 1630 2165 2445 2598 3097 4330 4890 6194 6495 8227 9291 12990 15485 16454 18582 24681 30970 41135 46455 49362 70579 82270 92910 123405 141158 211737 246810 352895 423474 705790 1058685 1341001 2117370 2682002 4023003 6705005 8046006 13410010 20115015 40230030