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491052 = 223151271
BaseRepresentation
bin1110111111000101100
3220221121010
41313320230
5111203202
614305220
74113432
oct1677054
9827533
10491052
11305a31
121b8210
13142683
14cad52
159a76c
hex77e2c

491052 has 24 divisors (see below), whose sum is σ = 1157632. Its totient is φ = 162000.

The previous prime is 491041. The next prime is 491059. The reversal of 491052 is 250194.

It is a super-2 number, since 2×4910522 = 482264133408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1677 + ... + 1947.

2491052 is an apocalyptic number.

It is an amenable number.

491052 is an abundant number, since it is smaller than the sum of its proper divisors (666580).

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

491052 is a wasteful number, since it uses less digits than its factorization.

491052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429 (or 427 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 491052 is about 700.7510256860. The cubic root of 491052 is about 78.8937309584.

The spelling of 491052 in words is "four hundred ninety-one thousand, fifty-two".

Divisors: 1 2 3 4 6 12 151 271 302 453 542 604 813 906 1084 1626 1812 3252 40921 81842 122763 163684 245526 491052