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872280 = 233252423
BaseRepresentation
bin11010100111101011000
31122022112200
43110331120
5210403110
630410200
710262043
oct3247530
91568480
10872280
115463a2
12360960
13247056
14189c5a
151236c0
hexd4f58

872280 has 48 divisors (see below), whose sum is σ = 2836080. Its totient is φ = 232512.

The previous prime is 872269. The next prime is 872281. The reversal of 872280 is 82278.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872281) 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 11 ways as a sum of consecutive naturals, for example, 852 + ... + 1571.

It is an arithmetic number, because the mean of its divisors is an integer number (59085).

2872280 is an apocalyptic number.

It is an amenable number.

872280 is an abundant number, since it is smaller than the sum of its proper divisors (1963800).

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

872280 is a wasteful number, since it uses less digits than its factorization.

872280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2440 (or 2433 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 872280 is about 933.9593138890. The cubic root of 872280 is about 95.5473482124.

The spelling of 872280 in words is "eight hundred seventy-two thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 90 120 180 360 2423 4846 7269 9692 12115 14538 19384 21807 24230 29076 36345 43614 48460 58152 72690 87228 96920 109035 145380 174456 218070 290760 436140 872280