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5287997825 = 5211193132647
BaseRepresentation
bin1001110110011000…
…00111000110000001
3111122112022010022022
410323030013012001
541312211412300
62232420051225
7245020145165
oct47314070601
914575263268
105287997825
112273a34040
121036b33b15
136637166c6
1438242cca5
1520e394285
hex13b307181

5287997825 has 48 divisors (see below), whose sum is σ = 7772835840. Its totient is φ = 3525768000.

The previous prime is 5287997807. The next prime is 5287997839.

It is a happy number.

5287997825 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5287997825 - 210 = 5287996801 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 145652 + ... + 178298.

It is an arithmetic number, because the mean of its divisors is an integer number (161934080).

Almost surely, 25287997825 is an apocalyptic number.

5287997825 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5287997825 is a deficient number, since it is larger than the sum of its proper divisors (2484838015).

5287997825 is a wasteful number, since it uses less digits than its factorization.

5287997825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32718 (or 32713 counting only the distinct ones).

The product of its digits is 25401600, while the sum is 62.

The square root of 5287997825 is about 72718.6208958888. The cubic root of 5287997825 is about 1742.1963088818.

The spelling of 5287997825 in words is "five billion, two hundred eighty-seven million, nine hundred ninety-seven thousand, eight hundred twenty-five".

Divisors: 1 5 11 19 25 31 55 95 155 209 275 341 475 589 775 1045 1705 2945 5225 6479 8525 14725 32395 32647 161975 163235 359117 620293 816175 1012057 1795585 3101465 5060285 6823223 8977925 11132627 15507325 19229083 25301425 34116115 55663135 96145415 170580575 211519913 278315675 480727075 1057599565 5287997825