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30888739384 = 2320149191627
BaseRepresentation
bin11100110001000111…
…001100001000111000
32221201200121112121121
4130301013030020320
51001230004130014
622105020515024
72142310644526
oct346107141070
987650545547
1030888739384
1112110985098
125ba06aba74
132bb35481a9
1416d04b3316
15c0bb7e124
hex7311cc238

30888739384 has 16 divisors (see below), whose sum is σ = 57919563000. Its totient is φ = 15443522592.

The previous prime is 30888739361. The next prime is 30888739393. The reversal of 30888739384 is 48393788803.

It is a super-2 number, since 2×308887393842 (a number of 22 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, 65379 + ... + 257005.

Almost surely, 230888739384 is an apocalyptic number.

It is an amenable number.

30888739384 is a deficient number, since it is larger than the sum of its proper divisors (27030823616).

30888739384 is a wasteful number, since it uses less digits than its factorization.

30888739384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211782 (or 211778 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 61.

The spelling of 30888739384 in words is "thirty billion, eight hundred eighty-eight million, seven hundred thirty-nine thousand, three hundred eighty-four".

Divisors: 1 2 4 8 20149 40298 80596 161192 191627 383254 766508 1533016 3861092423 7722184846 15444369692 30888739384