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260412140 = 22513020607
BaseRepresentation
bin11111000010110…
…01001011101100
3200011000022022002
433201121023230
51013131142030
641501311432
76311316032
oct1741311354
9604008262
10260412140
11123aa554a
1273265578
1341c49a31
142682a552
1517cde245
hexf8592ec

260412140 has 12 divisors (see below), whose sum is σ = 546865536. Its totient is φ = 104164848.

The previous prime is 260412091. The next prime is 260412143. The reversal of 260412140 is 41214062.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 13020607 = 260412140 / (2 + 6 + 0 + 4 + 1 + 2 + 1 + 4 + 0).

It is not an unprimeable number, because it can be changed into a prime (260412143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6510284 + ... + 6510323.

It is an arithmetic number, because the mean of its divisors is an integer number (45572128).

Almost surely, 2260412140 is an apocalyptic number.

260412140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260412140 is an abundant number, since it is smaller than the sum of its proper divisors (286453396).

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

260412140 is a wasteful number, since it uses less digits than its factorization.

260412140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13020616 (or 13020614 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 260412140 is about 16137.2903549512. The cubic root of 260412140 is about 638.5874935573.

The spelling of 260412140 in words is "two hundred sixty million, four hundred twelve thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 13020607 26041214 52082428 65103035 130206070 260412140