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1145260 = 225173331
BaseRepresentation
bin100010111100110101100
32011012000001
410113212230
5243122020
640314044
712506644
oct4274654
92135001
101145260
117124a6
12472924
1331138c
1421b524
1517950a
hex1179ac

1145260 has 24 divisors (see below), whose sum is σ = 2426256. Its totient is φ = 454080.

The previous prime is 1145227. The next prime is 1145269. The reversal of 1145260 is 625411.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1145269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3295 + ... + 3625.

It is an arithmetic number, because the mean of its divisors is an integer number (101094).

21145260 is an apocalyptic number.

1145260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1145260 is an abundant number, since it is smaller than the sum of its proper divisors (1280996).

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

1145260 is a wasteful number, since it uses less digits than its factorization.

1145260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513 (or 511 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1145260 is about 1070.1682110771. The cubic root of 1145260 is about 104.6248136630.

The spelling of 1145260 in words is "one million, one hundred forty-five thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 173 331 346 662 692 865 1324 1655 1730 3310 3460 6620 57263 114526 229052 286315 572630 1145260