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5287206988 = 2271941242399
BaseRepresentation
bin1001110110010010…
…00110000001001100
3111122110210221111001
410323021012001030
541312011110423
62232351110044
7245010342430
oct47311060114
914573727431
105287206988
112273543958
121036812324
136634ca75b
143822a49c0
1520e289cad
hex13b24604c

5287206988 has 48 divisors (see below), whose sum is σ = 11402496000. Its totient is φ = 2094318720.

The previous prime is 5287206971. The next prime is 5287206997. The reversal of 5287206988 is 8896027825.

It is a happy number.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99388 + ... + 143011.

It is an arithmetic number, because the mean of its divisors is an integer number (237552000).

Almost surely, 25287206988 is an apocalyptic number.

It is an amenable number.

5287206988 is an abundant number, since it is smaller than the sum of its proper divisors (6115289012).

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

5287206988 is a wasteful number, since it uses less digits than its factorization.

5287206988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242470 (or 242468 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 55.

The square root of 5287206988 is about 72713.1830413165. The cubic root of 5287206988 is about 1742.1094542072.

The spelling of 5287206988 in words is "five billion, two hundred eighty-seven million, two hundred six thousand, nine hundred eighty-eight".

Divisors: 1 2 4 7 14 19 28 38 41 76 82 133 164 266 287 532 574 779 1148 1558 3116 5453 10906 21812 242399 484798 969596 1696793 3393586 4605581 6787172 9211162 9938359 18422324 19876718 32239067 39753436 64478134 69568513 128956268 139137026 188828821 278274052 377657642 755315284 1321801747 2643603494 5287206988