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20380444514 = 231328716847
BaseRepresentation
bin10010111110110001…
…001110011101100010
31221121100101212000022
4102332301032131202
5313214343211024
613210155353442
71321021630403
oct227661163542
957540355008
1020380444514
118709258681
123b49452882
131bca460231
14db4a399aa
157e436a35e
hex4bec4e762

20380444514 has 8 divisors (see below), whose sum is σ = 31556817408. Its totient is φ = 9861505380.

The previous prime is 20380444499. The next prime is 20380444531. The reversal of 20380444514 is 41544408302.

It is a happy number.

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

It is an unprimeable number.

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, 164358362 + ... + 164358485.

It is an arithmetic number, because the mean of its divisors is an integer number (3944602176).

Almost surely, 220380444514 is an apocalyptic number.

20380444514 is a deficient number, since it is larger than the sum of its proper divisors (11176372894).

20380444514 is a wasteful number, since it uses less digits than its factorization.

20380444514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328716880.

The product of its (nonzero) digits is 61440, while the sum is 35.

The spelling of 20380444514 in words is "twenty billion, three hundred eighty million, four hundred forty-four thousand, five hundred fourteen".

Divisors: 1 2 31 62 328716847 657433694 10190222257 20380444514