Search a number
-
+
12210033040 = 245152625413
BaseRepresentation
bin10110101111100011…
…00101000110010000
31011111221022221111221
423113301211012100
5200001232024130
65335331214424
7611401365652
oct132761450620
934457287457
1012210033040
1151a62775a7
122449147414
1311c782272a
1483b8926d2
154b6e0c87a
hex2d7c65190

12210033040 has 20 divisors (see below), whose sum is σ = 28388327004. Its totient is φ = 4884013184.

The previous prime is 12210032987. The next prime is 12210033083. The reversal of 12210033040 is 4033001221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1616683264 + 10593349776 = 40208^2 + 102924^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76312627 + ... + 76312786.

Almost surely, 212210033040 is an apocalyptic number.

12210033040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12210033040 is an abundant number, since it is smaller than the sum of its proper divisors (16178293964).

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

12210033040 is a wasteful number, since it uses less digits than its factorization.

12210033040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152625426 (or 152625420 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 12210033040 its reverse (4033001221), we get a palindrome (16243034261).

The spelling of 12210033040 in words is "twelve billion, two hundred ten million, thirty-three thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 152625413 305250826 610501652 763127065 1221003304 1526254130 2442006608 3052508260 6105016520 12210033040