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2485980 = 2232571973
BaseRepresentation
bin1001011110111011011100
311200022010100
421132323130
51114022410
6125141100
730062520
oct11367334
94608110
102485980
111448832
129ba790
136906c3
14489d80
153418c0
hex25eedc

2485980 has 72 divisors (see below), whose sum is σ = 8622432. Its totient is φ = 567936.

The previous prime is 2485949. The next prime is 2485991. The reversal of 2485980 is 895842.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 274 + ... + 2246.

It is an arithmetic number, because the mean of its divisors is an integer number (119756).

22485980 is an apocalyptic number.

2485980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2485980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4311216).

2485980 is an abundant number, since it is smaller than the sum of its proper divisors (6136452).

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

2485980 is a wasteful number, since it uses less digits than its factorization.

2485980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1995 (or 1990 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 2485980 is about 1576.6990835286. The cubic root of 2485980 is about 135.4666975160.

The spelling of 2485980 in words is "two million, four hundred eighty-five thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 28 30 35 36 42 45 60 63 70 84 90 105 126 140 180 210 252 315 420 630 1260 1973 3946 5919 7892 9865 11838 13811 17757 19730 23676 27622 29595 35514 39460 41433 55244 59190 69055 71028 82866 88785 118380 124299 138110 165732 177570 207165 248598 276220 355140 414330 497196 621495 828660 1242990 2485980