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438097494 = 23321722697
BaseRepresentation
bin11010000111001…
…101011001010110
31010112100122210010
4122013031121112
51344123104434
6111245541050
713566524112
oct3207153126
91115318703
10438097494
1120532714a
12102874786
136c9c01b3
1442280742
15286db9e9
hex1a1cd656

438097494 has 16 divisors (see below), whose sum is σ = 876505968. Its totient is φ = 145980672.

The previous prime is 438097469. The next prime is 438097507. The reversal of 438097494 is 494790834.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7954 + ... + 30650.

It is an arithmetic number, because the mean of its divisors is an integer number (54781623).

Almost surely, 2438097494 is an apocalyptic number.

438097494 is an abundant number, since it is smaller than the sum of its proper divisors (438408474).

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

438097494 is a wasteful number, since it uses less digits than its factorization.

438097494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25919.

The product of its (nonzero) digits is 870912, while the sum is 48.

The square root of 438097494 is about 20930.7786286129. The cubic root of 438097494 is about 759.4926750389.

The spelling of 438097494 in words is "four hundred thirty-eight million, ninety-seven thousand, four hundred ninety-four".

Divisors: 1 2 3 6 3217 6434 9651 19302 22697 45394 68091 136182 73016249 146032498 219048747 438097494