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479142 = 23319467
BaseRepresentation
bin1110100111110100110
3220100021000
41310332212
5110313032
614134130
74033626
oct1647646
9810230
10479142
112a7a94
121b1346
1313a121
14c6886
1596e7c
hex74fa6

479142 has 32 divisors (see below), whose sum is σ = 1123200. Its totient is φ = 150984.

The previous prime is 479137. The next prime is 479147. The reversal of 479142 is 241974.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (479137) and next prime (479147).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 479142.

It is not an unprimeable number, because it can be changed into a prime (479147) by changing a digit.

479142 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, 793 + ... + 1259.

It is an arithmetic number, because the mean of its divisors is an integer number (35100).

2479142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 479142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (561600).

479142 is an abundant number, since it is smaller than the sum of its proper divisors (644058).

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

479142 is a wasteful number, since it uses less digits than its factorization.

479142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497 (or 491 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 479142 is about 692.2008379076. The cubic root of 479142 is about 78.2506728261.

The spelling of 479142 in words is "four hundred seventy-nine thousand, one hundred forty-two".

Divisors: 1 2 3 6 9 18 19 27 38 54 57 114 171 342 467 513 934 1026 1401 2802 4203 8406 8873 12609 17746 25218 26619 53238 79857 159714 239571 479142