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442302441 = 37157134153
BaseRepresentation
bin11010010111001…
…111111111101001
31010211021021212220
4122113033333221
51401212134231
6111520024253
713650336330
oct3227177751
91124237786
10442302441
11207739409
12104162089
1370833129
1442a56d17
1528c6c896
hex1a5cffe9

442302441 has 16 divisors (see below), whose sum is σ = 678282624. Its totient is φ = 251132544.

The previous prime is 442302439. The next prime is 442302457. The reversal of 442302441 is 144203244.

It is a happy number.

It is not a de Polignac number, because 442302441 - 21 = 442302439 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (442302541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63780 + ... + 70373.

It is an arithmetic number, because the mean of its divisors is an integer number (42392664).

Almost surely, 2442302441 is an apocalyptic number.

It is an amenable number.

442302441 is a deficient number, since it is larger than the sum of its proper divisors (235980183).

442302441 is a wasteful number, since it uses less digits than its factorization.

442302441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134320.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 442302441 is about 21030.9876372937. The cubic root of 442302441 is about 761.9148625956.

Adding to 442302441 its reverse (144203244), we get a palindrome (586505685).

The spelling of 442302441 in words is "four hundred forty-two million, three hundred two thousand, four hundred forty-one".

Divisors: 1 3 7 21 157 471 1099 3297 134153 402459 939071 2817213 21062021 63186063 147434147 442302441