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2402020 = 225831447
BaseRepresentation
bin1001001010011011100100
311112000221201
421022123210
51103331040
6123252244
726262655
oct11123344
94460851
102402020
1113a0745
1297a084
1366141a
1446752c
15326a9a
hex24a6e4

2402020 has 24 divisors (see below), whose sum is σ = 5108544. Its totient is φ = 948576.

The previous prime is 2402009. The next prime is 2402027. The reversal of 2402020 is 202042.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (10).

2402020 is a modest number, since divided by 2020 gives 240 as remainder.

It is a plaindrome in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 2401988 and 2402006.

It is not an unprimeable number, because it can be changed into a prime (2402027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 937 + ... + 2383.

It is an arithmetic number, because the mean of its divisors is an integer number (212856).

22402020 is an apocalyptic number.

2402020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2402020 is an abundant number, since it is smaller than the sum of its proper divisors (2706524).

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

2402020 is a wasteful number, since it uses less digits than its factorization.

2402020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1539 (or 1537 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 2402020 is about 1549.8451535557. The cubic root of 2402020 is about 133.9241421096.

Adding to 2402020 its reverse (202042), we get a palindrome (2604062).

The spelling of 2402020 in words is "two million, four hundred two thousand, twenty".

Divisors: 1 2 4 5 10 20 83 166 332 415 830 1447 1660 2894 5788 7235 14470 28940 120101 240202 480404 600505 1201010 2402020