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442201053 = 3721057193
BaseRepresentation
bin11010010110110…
…111001111011101
31010211002010210210
4122112313033131
51401200413203
6111513523033
713646434620
oct3226671735
91124063723
10442201053
1120767a218
12104113479
13707c8c38
1442a2bdb7
1528c4c803
hex1a5b73dd

442201053 has 8 divisors (see below), whose sum is σ = 673830208. Its totient is φ = 252686304.

The previous prime is 442201049. The next prime is 442201069. The reversal of 442201053 is 350102244.

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

It is not a de Polignac number, because 442201053 - 22 = 442201049 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: 21057193 = 442201053 / (4 + 4 + 2 + 2 + 0 + 1 + 0 + 5 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442201043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10528576 + ... + 10528617.

It is an arithmetic number, because the mean of its divisors is an integer number (84228776).

Almost surely, 2442201053 is an apocalyptic number.

It is an amenable number.

442201053 is a deficient number, since it is larger than the sum of its proper divisors (231629155).

442201053 is a wasteful number, since it uses less digits than its factorization.

442201053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21057203.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 442201053 is about 21028.5770559969. The cubic root of 442201053 is about 761.8566407996.

Adding to 442201053 its reverse (350102244), we get a palindrome (792303297).

The spelling of 442201053 in words is "four hundred forty-two million, two hundred one thousand, fifty-three".

Divisors: 1 3 7 21 21057193 63171579 147400351 442201053