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495930 = 23561271
BaseRepresentation
bin1111001000100111010
3221012021210
41321010322
5111332210
614343550
74133601
oct1710472
9835253
10495930
11309666
121babb6
13144966
14cca38
159be20
hex7913a

495930 has 32 divisors (see below), whose sum is σ = 1214208. Its totient is φ = 129600.

The previous prime is 495923. The next prime is 495931. The reversal of 495930 is 39594.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (495931) by changing a digit.

495930 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 15 ways as a sum of consecutive naturals, for example, 1695 + ... + 1965.

It is an arithmetic number, because the mean of its divisors is an integer number (37944).

2495930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 495930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (607104).

495930 is an abundant number, since it is smaller than the sum of its proper divisors (718278).

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

495930 is a wasteful number, since it uses less digits than its factorization.

495930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 495930 is about 704.2229760523. Note that the first 3 decimals coincide. The cubic root of 495930 is about 79.1541081957.

The spelling of 495930 in words is "four hundred ninety-five thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 61 122 183 271 305 366 542 610 813 915 1355 1626 1830 2710 4065 8130 16531 33062 49593 82655 99186 165310 247965 495930