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949980 = 223571223
BaseRepresentation
bin11100111111011011100
31210021010110
43213323130
5220344410
632210020
711034423
oct3477334
91707113
10949980
11599809
12399910
13273525
141aa2ba
1513b720
hexe7edc

949980 has 48 divisors (see below), whose sum is σ = 2709504. Its totient is φ = 248640.

The previous prime is 949979. The next prime is 949987. The reversal of 949980 is 89949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (949987) 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, 4149 + ... + 4371.

It is an arithmetic number, because the mean of its divisors is an integer number (56448).

2949980 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 949980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1354752).

949980 is an abundant number, since it is smaller than the sum of its proper divisors (1759524).

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

949980 is a wasteful number, since it uses less digits than its factorization.

949980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306 (or 304 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 949980 is about 974.6691746434. The cubic root of 949980 is about 98.3040673864.

The spelling of 949980 in words is "nine hundred forty-nine thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 71 142 213 223 284 355 426 446 669 710 852 892 1065 1115 1338 1420 2130 2230 2676 3345 4260 4460 6690 13380 15833 31666 47499 63332 79165 94998 158330 189996 237495 316660 474990 949980