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260288090 = 25314120479
BaseRepresentation
bin11111000001110…
…10111001011010
3200010210000010122
433200322321122
51013113204330
641454513242
76310261256
oct1740727132
9603700118
10260288090
11123a20327
1273205822
1341c0542a
14267d7266
1517cb75e5
hexf83ae5a

260288090 has 32 divisors (see below), whose sum is σ = 495452160. Its totient is φ = 98294400.

The previous prime is 260288057. The next prime is 260288129. The reversal of 260288090 is 90882062.

It is a self number, because there is not a number n which added to its sum of digits gives 260288090.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2471 + ... + 22949.

It is an arithmetic number, because the mean of its divisors is an integer number (15482880).

Almost surely, 2260288090 is an apocalyptic number.

260288090 is a deficient number, since it is larger than the sum of its proper divisors (235164070).

260288090 is a wasteful number, since it uses less digits than its factorization.

260288090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20558.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 260288090 is about 16133.4463150314. The cubic root of 260288090 is about 638.4860782131.

The spelling of 260288090 in words is "two hundred sixty million, two hundred eighty-eight thousand, ninety".

Divisors: 1 2 5 10 31 41 62 82 155 205 310 410 1271 2542 6355 12710 20479 40958 102395 204790 634849 839639 1269698 1679278 3174245 4198195 6348490 8396390 26028809 52057618 130144045 260288090