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471220 = 22523561
BaseRepresentation
bin1110011000010110100
3212221101121
41303002310
5110034340
614033324
74001551
oct1630264
9787347
10471220
112a2042
121a8844
13136639
14c3a28
159494a
hex730b4

471220 has 12 divisors (see below), whose sum is σ = 989604. Its totient is φ = 188480.

The previous prime is 471217. The next prime is 471241. The reversal of 471220 is 22174.

471220 = T207 + T208 + ... + T226.

It can be written as a sum of positive squares in 2 ways, for example, as 132496 + 338724 = 364^2 + 582^2 .

It is a junction number, because it is equal to n+sod(n) for n = 471194 and 471203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11761 + ... + 11800.

It is an arithmetic number, because the mean of its divisors is an integer number (82467).

2471220 is an apocalyptic number.

It is an amenable number.

471220 is an abundant number, since it is smaller than the sum of its proper divisors (518384).

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

471220 is a wasteful number, since it uses less digits than its factorization.

471220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23570 (or 23568 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 471220 is about 686.4546598283. The cubic root of 471220 is about 77.8170157269.

Adding to 471220 its reverse (22174), we get a palindrome (493394).

The spelling of 471220 in words is "four hundred seventy-one thousand, two hundred twenty", and thus it is an iban number.

Divisors: 1 2 4 5 10 20 23561 47122 94244 117805 235610 471220