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1241020 = 225115641
BaseRepresentation
bin100101110111110111100
32100001100201
410232332330
5304203040
642333244
713356064
oct4567674
92301321
101241020
11778440
124ba224
13345b41
142443a4
15197a9a
hex12efbc

1241020 has 24 divisors (see below), whose sum is σ = 2843568. Its totient is φ = 451200.

The previous prime is 1241003. The next prime is 1241027. The reversal of 1241020 is 201421.

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

It is a junction number, because it is equal to n+sod(n) for n = 1240988 and 1241006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241027) 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, 2601 + ... + 3040.

It is an arithmetic number, because the mean of its divisors is an integer number (118482).

21241020 is an apocalyptic number.

1241020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1241020 is an abundant number, since it is smaller than the sum of its proper divisors (1602548).

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

1241020 is a wasteful number, since it uses less digits than its factorization.

1241020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5661 (or 5659 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1241020 is about 1114.0107719407. The cubic root of 1241020 is about 107.4631566549.

Adding to 1241020 its reverse (201421), we get a palindrome (1442441).

The spelling of 1241020 in words is "one million, two hundred forty-one thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 5641 11282 22564 28205 56410 62051 112820 124102 248204 310255 620510 1241020