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3121413432 = 233612132113
BaseRepresentation
bin1011101000001100…
…1111110100111000
322001112111020020220
42322003033310320
522343040212212
61233422420040
7140231401464
oct27203176470
98045436226
103121413432
111361a58125
12731431620
133a98b48c7
142187ad4a4
1513407838c
hexba0cfd38

3121413432 has 32 divisors (see below), whose sum is σ = 7931464080. Its totient is φ = 1023413760.

The previous prime is 3121413419. The next prime is 3121413433. The reversal of 3121413432 is 2343141213.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121413433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1064593 + ... + 1067520.

Almost surely, 23121413432 is an apocalyptic number.

It is an amenable number.

3121413432 is an abundant number, since it is smaller than the sum of its proper divisors (4810050648).

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

3121413432 is a wasteful number, since it uses less digits than its factorization.

3121413432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132183 (or 2132179 counting only the distinct ones).

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

The square root of 3121413432 is about 55869.6109884434. The cubic root of 3121413432 is about 1461.4493382762.

Adding to 3121413432 its reverse (2343141213), we get a palindrome (5464554645).

The spelling of 3121413432 in words is "three billion, one hundred twenty-one million, four hundred thirteen thousand, four hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 24 61 122 183 244 366 488 732 1464 2132113 4264226 6396339 8528452 12792678 17056904 25585356 51170712 130058893 260117786 390176679 520235572 780353358 1040471144 1560706716 3121413432