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881380 = 225127347
BaseRepresentation
bin11010111001011100100
31122210000201
43113023210
5211201010
630520244
710330423
oct3271344
91583021
10881380
11552215
12366084
1324b236
1418d2ba
1512623a
hexd72e4

881380 has 24 divisors (see below), whose sum is σ = 1870848. Its totient is φ = 348768.

The previous prime is 881369. The next prime is 881393. The reversal of 881380 is 83188.

It is an unprimeable number.

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, 2367 + ... + 2713.

It is an arithmetic number, because the mean of its divisors is an integer number (77952).

2881380 is an apocalyptic number.

It is an amenable number.

881380 is an abundant number, since it is smaller than the sum of its proper divisors (989468).

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

881380 is a wasteful number, since it uses less digits than its factorization.

881380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483 (or 481 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 881380 is about 938.8184062959. The cubic root of 881380 is about 95.8784630962.

Subtracting from 881380 its product of nonzero digits (1536), we obtain a square (879844 = 9382).

The spelling of 881380 in words is "eight hundred eighty-one thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 127 254 347 508 635 694 1270 1388 1735 2540 3470 6940 44069 88138 176276 220345 440690 881380