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11880705432 = 2331627304259
BaseRepresentation
bin10110001000010010…
…10010110110011000
31010122222122100222010
423010021102312120
5143312430033212
65242524425520
7600262221111
oct130411226630
933588570863
1011880705432
115047391922
1223769a82a0
131174526a1b
14809c47208
1549805903c
hex2c4252d98

11880705432 has 32 divisors (see below), whose sum is σ = 29720116800. Its totient is φ = 3957788064.

The previous prime is 11880705383. The next prime is 11880705437. The reversal of 11880705432 is 23450708811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11880705437) 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, 113082 + ... + 191177.

It is an arithmetic number, because the mean of its divisors is an integer number (928753650).

Almost surely, 211880705432 is an apocalyptic number.

11880705432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11880705432 is an abundant number, since it is smaller than the sum of its proper divisors (17839411368).

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

11880705432 is a wasteful number, since it uses less digits than its factorization.

11880705432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305895 (or 305891 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The spelling of 11880705432 in words is "eleven billion, eight hundred eighty million, seven hundred five thousand, four hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 24 1627 3254 4881 6508 9762 13016 19524 39048 304259 608518 912777 1217036 1825554 2434072 3651108 7302216 495029393 990058786 1485088179 1980117572 2970176358 3960235144 5940352716 11880705432