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260020411 = 735571361
BaseRepresentation
bin11110111111110…
…01100010111011
3200010021101221121
433133321202323
51013031123121
641445050111
76305065000
oct1737714273
9603241847
10260020411
11123858202
12730b6937
1341b40641
14267678a7
1517c63141
hexf7f98bb

260020411 has 16 divisors (see below), whose sum is σ = 303998400. Its totient is φ = 222311040.

The previous prime is 260020393. The next prime is 260020421. The reversal of 260020411 is 114020062.

It is not a de Polignac number, because 260020411 - 213 = 260012219 is a prime.

It is a super-2 number, since 2×2600204112 = 135221228273217842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260020421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190371 + ... + 191731.

It is an arithmetic number, because the mean of its divisors is an integer number (18999900).

Almost surely, 2260020411 is an apocalyptic number.

260020411 is a deficient number, since it is larger than the sum of its proper divisors (43977989).

260020411 is an equidigital number, since it uses as much as digits as its factorization.

260020411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1939 (or 1925 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 260020411 is about 16125.1484024179. The cubic root of 260020411 is about 638.2671311535.

Adding to 260020411 its reverse (114020062), we get a palindrome (374040473).

The spelling of 260020411 in words is "two hundred sixty million, twenty thousand, four hundred eleven".

Divisors: 1 7 49 343 557 1361 3899 9527 27293 66689 191051 466823 758077 5306539 37145773 260020411