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268265530 = 25132181877
BaseRepresentation
bin11111111110101…
…10100000111010
3200200210022010101
433333112200322
51022133444110
642341510014
76435135151
oct1777264072
9620708111
10268265530
11128479955
1275a1230a
1343769500
14278b2598
151884113a
hexffd683a

268265530 has 48 divisors (see below), whose sum is σ = 526368024. Its totient is φ = 98392320.

The previous prime is 268265513. The next prime is 268265533. The reversal of 268265530 is 35562862.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 12809241 + 255456289 = 3579^2 + 15983^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 268265530.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268265533) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 305452 + ... + 306328.

Almost surely, 2268265530 is an apocalyptic number.

268265530 is a deficient number, since it is larger than the sum of its proper divisors (258102494).

268265530 is a wasteful number, since it uses less digits than its factorization.

268265530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091 (or 1078 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 268265530 is about 16378.8134490872. The cubic root of 268265530 is about 644.9434319318.

The spelling of 268265530 in words is "two hundred sixty-eight million, two hundred sixty-five thousand, five hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 169 181 338 362 845 877 905 1690 1754 1810 2353 4385 4706 8770 11401 11765 22802 23530 30589 57005 61178 114010 148213 152945 158737 296426 305890 317474 741065 793685 1482130 1587370 2063581 4127162 10317905 20635810 26826553 53653106 134132765 268265530