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881040 = 24353671
BaseRepresentation
bin11010111000110010000
31122202120010
43113012100
5211143130
630514520
710326426
oct3270620
91582503
10881040
11551a36
12365a40
1324b034
1418d116
151260b0
hexd7190

881040 has 40 divisors (see below), whose sum is σ = 2731968. Its totient is φ = 234880.

The previous prime is 881029. The next prime is 881057. The reversal of 881040 is 40188.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 880998 and 881016.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 881040.

It is an unprimeable number.

881040 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1596 + ... + 2075.

2881040 is an apocalyptic number.

881040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

881040 is an abundant number, since it is smaller than the sum of its proper divisors (1850928).

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

881040 is a wasteful number, since it uses less digits than its factorization.

881040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3687 (or 3681 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 881040 is about 938.6373101470. The cubic root of 881040 is about 95.8661328603.

It can be divided in two parts, 88 and 1040, that added together give a triangular number (1128 = T47).

The spelling of 881040 in words is "eight hundred eighty-one thousand, forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 3671 7342 11013 14684 18355 22026 29368 36710 44052 55065 58736 73420 88104 110130 146840 176208 220260 293680 440520 881040