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1204420413 = 3757353353
BaseRepresentation
bin100011111001001…
…1111111100111101
310002221022220012110
41013302133330331
54431312423123
6315302524233
741563255530
oct10762377475
93087286173
101204420413
11568955979
12297436679
131626b1501
14b5d60a17
1570b10493
hex47c9ff3d

1204420413 has 8 divisors (see below), whose sum is σ = 1835307328. Its totient is φ = 688240224.

The previous prime is 1204420397. The next prime is 1204420421. The reversal of 1204420413 is 3140244021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1204420413 - 24 = 1204420397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 57353353 = 1204420413 / (1 + 2 + 0 + 4 + 4 + 2 + 0 + 4 + 1 + 3).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1204420413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204420423) 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, 28676656 + ... + 28676697.

It is an arithmetic number, because the mean of its divisors is an integer number (229413416).

Almost surely, 21204420413 is an apocalyptic number.

It is an amenable number.

1204420413 is a deficient number, since it is larger than the sum of its proper divisors (630886915).

1204420413 is an equidigital number, since it uses as much as digits as its factorization.

1204420413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57353363.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1204420413 is about 34704.7606676663. The cubic root of 1204420413 is about 1063.9618007490.

Adding to 1204420413 its reverse (3140244021), we get a palindrome (4344664434).

The spelling of 1204420413 in words is "one billion, two hundred four million, four hundred twenty thousand, four hundred thirteen".

Divisors: 1 3 7 21 57353353 172060059 401473471 1204420413