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491442 = 23711701
BaseRepresentation
bin1110111111110110010
3220222010120
41313332302
5111211232
614311110
74114530
oct1677662
9828116
10491442
11306256
121b8496
131428c3
14cb150
159a92c
hex77fb2

491442 has 16 divisors (see below), whose sum is σ = 1123392. Its totient is φ = 140400.

The previous prime is 491429. The next prime is 491461. The reversal of 491442 is 244194.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5809 + ... + 5892.

It is an arithmetic number, because the mean of its divisors is an integer number (70212).

2491442 is an apocalyptic number.

491442 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

491442 is an abundant number, since it is smaller than the sum of its proper divisors (631950).

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

491442 is a wasteful number, since it uses less digits than its factorization.

491442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11713.

The product of its digits is 1152, while the sum is 24.

The square root of 491442 is about 701.0292433273. The cubic root of 491442 is about 78.9146115800.

The spelling of 491442 in words is "four hundred ninety-one thousand, four hundred forty-two".

Divisors: 1 2 3 6 7 14 21 42 11701 23402 35103 70206 81907 163814 245721 491442