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428310 = 23254759
BaseRepresentation
bin1101000100100010110
3210202112100
41220210112
5102201220
613102530
73432501
oct1504426
9722470
10428310
11272883
12187a46
1311cc4c
14b2138
1586d90
hex68916

428310 has 24 divisors (see below), whose sum is σ = 1113840. Its totient is φ = 114192.

The previous prime is 428303. The next prime is 428339. The reversal of 428310 is 13824.

It is a happy number.

428310 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×4283102 = 366898912200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

428310 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 11 ways as a sum of consecutive naturals, for example, 2290 + ... + 2469.

It is an arithmetic number, because the mean of its divisors is an integer number (46410).

2428310 is an apocalyptic number.

428310 is an abundant number, since it is smaller than the sum of its proper divisors (685530).

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

428310 is a wasteful number, since it uses less digits than its factorization.

428310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4772 (or 4769 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 428310 is about 654.4539708795. The cubic root of 428310 is about 75.3794107301.

The spelling of 428310 in words is "four hundred twenty-eight thousand, three hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 4759 9518 14277 23795 28554 42831 47590 71385 85662 142770 214155 428310