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187845480988 = 22114269215477
BaseRepresentation
bin1010111011110001110…
…1101001001000011100
3122221212021102010220121
42232330131221020130
511034201420342423
6222143420324324
716366662146344
oct2567435511034
9587767363817
10187845480988
1172734971170
12304a50a36a4
13149381658a9
14913db5dd24
154d4638045d
hex2bbc76921c

187845480988 has 12 divisors (see below), whose sum is σ = 358614100152. Its totient is φ = 85384309520.

The previous prime is 187845480931. The next prime is 187845481003. The reversal of 187845480988 is 889084548781.

It is a super-2 number, since 2×1878454809882 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 2134607695 + ... + 2134607782.

It is an arithmetic number, because the mean of its divisors is an integer number (29884508346).

Almost surely, 2187845480988 is an apocalyptic number.

It is an amenable number.

187845480988 is a deficient number, since it is larger than the sum of its proper divisors (170768619164).

187845480988 is a wasteful number, since it uses less digits than its factorization.

187845480988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4269215492 (or 4269215490 counting only the distinct ones).

The product of its (nonzero) digits is 165150720, while the sum is 70.

The spelling of 187845480988 in words is "one hundred eighty-seven billion, eight hundred forty-five million, four hundred eighty thousand, nine hundred eighty-eight".

Divisors: 1 2 4 11 22 44 4269215477 8538430954 17076861908 46961370247 93922740494 187845480988