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670852 = 227131997
BaseRepresentation
bin10100011110010000100
31021002020101
42203302010
5132431402
622213444
75462560
oct2436204
91232211
10670852
11419026
12284284
131a6470
141366a0
15d3b87
hexa3c84

670852 has 48 divisors (see below), whose sum is σ = 1536640. Its totient is φ = 248832.

The previous prime is 670849. The next prime is 670853. The reversal of 670852 is 258076.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 670852.

It is not an unprimeable number, because it can be changed into a prime (670853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6868 + ... + 6964.

2670852 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 670852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (768320).

670852 is an abundant number, since it is smaller than the sum of its proper divisors (865788).

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

670852 is a wasteful number, since it uses less digits than its factorization.

670852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 138 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 670852 is about 819.0555536714. The cubic root of 670852 is about 87.5404765112.

The spelling of 670852 in words is "six hundred seventy thousand, eight hundred fifty-two".

Divisors: 1 2 4 7 13 14 19 26 28 38 52 76 91 97 133 182 194 247 266 364 388 494 532 679 988 1261 1358 1729 1843 2522 2716 3458 3686 5044 6916 7372 8827 12901 17654 23959 25802 35308 47918 51604 95836 167713 335426 670852