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420292 = 22179587
BaseRepresentation
bin1100110100111000100
3210100112101
41212213010
5101422132
613001444
73400225
oct1464704
9710471
10420292
11267854
12183284
131193c2
14ad24c
15847e7
hex669c4

420292 has 12 divisors (see below), whose sum is σ = 740880. Its totient is φ = 208616.

The previous prime is 420271. The next prime is 420293. The reversal of 420292 is 292024.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (420293) by changing a digit.

420292 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 3 ways as a sum of consecutive naturals, for example, 423 + ... + 1009.

It is an arithmetic number, because the mean of its divisors is an integer number (61740).

2420292 is an apocalyptic number.

It is an amenable number.

420292 is a deficient number, since it is larger than the sum of its proper divisors (320588).

420292 is a wasteful number, since it uses less digits than its factorization.

420292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770 (or 768 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 420292 is about 648.2993135890. The cubic root of 420292 is about 74.9060750163.

The spelling of 420292 in words is "four hundred twenty thousand, two hundred ninety-two".

Divisors: 1 2 4 179 358 587 716 1174 2348 105073 210146 420292