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538470 = 232531193
BaseRepresentation
bin10000011011101100110
31000100122100
42003131212
5114212340
615312530
74401612
oct2033546
91010570
10538470
11338619
1221b746
1315b12a
14100342
15a9830
hex83766

538470 has 48 divisors (see below), whose sum is σ = 1452672. Its totient is φ = 138240.

The previous prime is 538457. The next prime is 538471. The reversal of 538470 is 74835.

538470 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538471) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2694 + ... + 2886.

It is an arithmetic number, because the mean of its divisors is an integer number (30264).

2538470 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 538470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (726336).

538470 is an abundant number, since it is smaller than the sum of its proper divisors (914202).

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

538470 is a wasteful number, since it uses less digits than its factorization.

538470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 538470 is about 733.8051512493. The cubic root of 538470 is about 81.3555472484.

The spelling of 538470 in words is "five hundred thirty-eight thousand, four hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 30 31 45 62 90 93 155 186 193 279 310 386 465 558 579 930 965 1158 1395 1737 1930 2790 2895 3474 5790 5983 8685 11966 17370 17949 29915 35898 53847 59830 89745 107694 179490 269235 538470