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1087480 = 23531877
BaseRepresentation
bin100001001011111111000
32001020202001
410021133320
5234244410
635150344
712146332
oct4113770
92036661
101087480
11683049
124453b4
132c0ca4
14204452
1516733a
hex1097f8

1087480 has 32 divisors (see below), whose sum is σ = 2528640. Its totient is φ = 420480.

The previous prime is 1087459. The next prime is 1087483. The reversal of 1087480 is 847801.

It is a super-2 number, since 2×10874802 = 2365225500800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1087483) 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, 802 + ... + 1678.

It is an arithmetic number, because the mean of its divisors is an integer number (79020).

21087480 is an apocalyptic number.

1087480 is a gapful number since it is divisible by the number (10) 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 1087480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1264320).

1087480 is an abundant number, since it is smaller than the sum of its proper divisors (1441160).

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

1087480 is a wasteful number, since it uses less digits than its factorization.

1087480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919 (or 915 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 1087480 is about 1042.8230914206. The cubic root of 1087480 is about 102.8348753972.

The spelling of 1087480 in words is "one million, eighty-seven thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 31 40 62 124 155 248 310 620 877 1240 1754 3508 4385 7016 8770 17540 27187 35080 54374 108748 135935 217496 271870 543740 1087480