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438934426379 = 1315013337879
BaseRepresentation
bin1100110001100101000…
…01111101001100001011
31112221222002120011021122
412120302201331030023
524142414203121004
6533351012025455
743466130031121
oct6306241751413
91487862504248
10438934426379
1115a17304a189
127109a30228b
1332511a04867
141735d033911
15b63ea99cbe
hex663287d30b

438934426379 has 4 divisors (see below), whose sum is σ = 438937895760. Its totient is φ = 438930957000.

The previous prime is 438934426373. The next prime is 438934426393. The reversal of 438934426379 is 973624439834.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 438934426379 - 28 = 438934426123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (438934426373) 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 3 ways as a sum of consecutive naturals, for example, 1537439 + ... + 1800440.

It is an arithmetic number, because the mean of its divisors is an integer number (109734473940).

Almost surely, 2438934426379 is an apocalyptic number.

438934426379 is a deficient number, since it is larger than the sum of its proper divisors (3469381).

438934426379 is a wasteful number, since it uses less digits than its factorization.

438934426379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3469380.

The product of its digits is 94058496, while the sum is 62.

The spelling of 438934426379 in words is "four hundred thirty-eight billion, nine hundred thirty-four million, four hundred twenty-six thousand, three hundred seventy-nine".

Divisors: 1 131501 3337879 438934426379