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2989020 = 2235311607
BaseRepresentation
bin1011011001101111011100
312121212011110
423121233130
51231122040
6144022020
734256226
oct13315734
95555143
102989020
111761771
121001910
13808668
1457b416
153e0980
hex2d9bdc

2989020 has 48 divisors (see below), whose sum is σ = 8644608. Its totient is φ = 770880.

The previous prime is 2989009. The next prime is 2989031. The reversal of 2989020 is 209892.

2989020 = T279 + T280 + ... + T340.

It is an interprime number because it is at equal distance from previous prime (2989009) and next prime (2989031).

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1057 + ... + 2663.

It is an arithmetic number, because the mean of its divisors is an integer number (180096).

22989020 is an apocalyptic number.

2989020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2989020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4322304).

2989020 is an abundant number, since it is smaller than the sum of its proper divisors (5655588).

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

2989020 is a wasteful number, since it uses less digits than its factorization.

2989020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1650 (or 1648 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 2989020 is about 1728.8782490390. The cubic root of 2989020 is about 144.0487874812.

The spelling of 2989020 in words is "two million, nine hundred eighty-nine thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 31 60 62 93 124 155 186 310 372 465 620 930 1607 1860 3214 4821 6428 8035 9642 16070 19284 24105 32140 48210 49817 96420 99634 149451 199268 249085 298902 498170 597804 747255 996340 1494510 2989020