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12428246652 = 2237349140929
BaseRepresentation
bin10111001001100011…
…11111111001111100
31012002010221100022120
423210301333321330
5200423112343102
65413124242540
7616661232153
oct134461777174
935063840276
1012428246652
1152a846a728
1224aa240450
131230ab6003
1485c85659a
154cb1636bc
hex2e4c7fe7c

12428246652 has 24 divisors (see below), whose sum is σ = 29003394000. Its totient is φ = 4142155776.

The previous prime is 12428246651. The next prime is 12428246653. The reversal of 12428246652 is 25664282421.

It is an interprime number because it is at equal distance from previous prime (12428246651) and next prime (12428246653).

It is a super-2 number, since 2×124282466522 (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 (12428246651) 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, 17724 + ... + 158652.

It is an arithmetic number, because the mean of its divisors is an integer number (1208474750).

Almost surely, 212428246652 is an apocalyptic number.

12428246652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12428246652 is an abundant number, since it is smaller than the sum of its proper divisors (16575147348).

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

12428246652 is a wasteful number, since it uses less digits than its factorization.

12428246652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148285 (or 148283 counting only the distinct ones).

The product of its digits is 368640, while the sum is 42.

The spelling of 12428246652 in words is "twelve billion, four hundred twenty-eight million, two hundred forty-six thousand, six hundred fifty-two".

Divisors: 1 2 3 4 6 12 7349 14698 22047 29396 44094 88188 140929 281858 422787 563716 845574 1691148 1035687221 2071374442 3107061663 4142748884 6214123326 12428246652