Search a number
-
+
22030963812 = 22321113311271087
BaseRepresentation
bin10100100001001001…
…011101010001100100
32002212101010220211200
4110201021131101210
5330104411320222
614042040002500
71406643050124
oct244111352144
962771126750
1022030963812
1193859a5210
12432a160430
1321013a3880
1410cdd20c84
1588e1e7eac
hex52125d464

22030963812 has 288 divisors, whose sum is σ = 68130177024. Its totient is φ = 5911315200.

The previous prime is 22030963811. The next prime is 22030963819. The reversal of 22030963812 is 21836903022.

22030963812 is a `hidden beast` number, since 2 + 2 + 0 + 3 + 0 + 9 + 638 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (22030963811) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 20267133 + ... + 20268219.

Almost surely, 222030963812 is an apocalyptic number.

22030963812 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22030963812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34065088512).

22030963812 is an abundant number, since it is smaller than the sum of its proper divisors (46099213212).

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

22030963812 is a wasteful number, since it uses less digits than its factorization.

22030963812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279 (or 1274 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 22030963812 in words is "twenty-two billion, thirty million, nine hundred sixty-three thousand, eight hundred twelve".