Search a number
-
+
21412143330 = 2352937365983
BaseRepresentation
bin10011111100010000…
…110110000011100010
32001021020201120201120
4103330100312003202
5322323002041310
613500412313110
71355420133564
oct237420660342
961236646646
1021412143330
119098662226
124196a72796
1320331186c6
141071a79334
15854c0db70
hex4fc4360e2

21412143330 has 64 divisors (see below), whose sum is σ = 53304514560. Its totient is φ = 5498148096.

The previous prime is 21412143307. The next prime is 21412143341. The reversal of 21412143330 is 3334121412.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 21412143330.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 291519 + ... + 357501.

It is an arithmetic number, because the mean of its divisors is an integer number (832883040).

Almost surely, 221412143330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21412143330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26652257280).

21412143330 is an abundant number, since it is smaller than the sum of its proper divisors (31892371230).

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

21412143330 is a wasteful number, since it uses less digits than its factorization.

21412143330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66395.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 21412143330 its reverse (3334121412), we get a palindrome (24746264742).

The spelling of 21412143330 in words is "twenty-one billion, four hundred twelve million, one hundred forty-three thousand, three hundred thirty".

Divisors: 1 2 3 5 6 10 15 29 30 58 87 145 174 290 373 435 746 870 1119 1865 2238 3730 5595 10817 11190 21634 32451 54085 64902 65983 108170 131966 162255 197949 324510 329915 395898 659830 989745 1913507 1979490 3827014 5740521 9567535 11481042 19135070 24611659 28702605 49223318 57405210 73834977 123058295 147669954 246116590 369174885 713738111 738349770 1427476222 2141214333 3568690555 4282428666 7137381110 10706071665 21412143330