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427386 = 231923163
BaseRepresentation
bin1101000010101111010
3210201021010
41220111322
5102134021
613054350
73430011
oct1502572
9721233
10427386
11272113
121873b6
1311c6bb
14b1a78
1586976
hex6857a

427386 has 32 divisors (see below), whose sum is σ = 944640. Its totient is φ = 128304.

The previous prime is 427381. The next prime is 427403. The reversal of 427386 is 683724.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (427381) by changing a digit.

427386 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is an upside-down number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2541 + ... + 2703.

It is an arithmetic number, because the mean of its divisors is an integer number (29520).

2427386 is an apocalyptic number.

427386 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

427386 is an abundant number, since it is smaller than the sum of its proper divisors (517254).

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

427386 is a wasteful number, since it uses less digits than its factorization.

427386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210.

The product of its digits is 8064, while the sum is 30.

The square root of 427386 is about 653.7476577396. The cubic root of 427386 is about 75.3251659683.

The spelling of 427386 in words is "four hundred twenty-seven thousand, three hundred eighty-six".

Divisors: 1 2 3 6 19 23 38 46 57 69 114 138 163 326 437 489 874 978 1311 2622 3097 3749 6194 7498 9291 11247 18582 22494 71231 142462 213693 427386