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12428246680 = 235915733931
BaseRepresentation
bin10111001001100011…
…11111111010011000
31012002010221100100121
423210301333322120
5200423112343210
65413124243024
7616661232223
oct134461777230
935063840317
1012428246680
1152a846a753
1224aa240474
131230ab6025
1485c8565ba
154cb1636da
hex2e4c7fe98

12428246680 has 32 divisors (see below), whose sum is σ = 27967433040. Its totient is φ = 4970609280.

The previous prime is 12428246671. The next prime is 12428246681. The reversal of 12428246680 is 8664282421.

It is a super-2 number, since 2×124282466802 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12428246681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349315 + ... + 383245.

Almost surely, 212428246680 is an apocalyptic number.

12428246680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12428246680 is an abundant number, since it is smaller than the sum of its proper divisors (15539186360).

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

12428246680 is a wasteful number, since it uses less digits than its factorization.

12428246680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43099 (or 43095 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 43.

The spelling of 12428246680 in words is "twelve billion, four hundred twenty-eight million, two hundred forty-six thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 9157 18314 33931 36628 45785 67862 73256 91570 135724 169655 183140 271448 339310 366280 678620 1357240 310706167 621412334 1242824668 1553530835 2485649336 3107061670 6214123340 12428246680