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20380396107 = 36793465369
BaseRepresentation
bin10010111110110001…
…000010101001001011
31221121100022101121110
4102332301002221023
5313214340133412
613210154341403
71321021336311
oct227661025113
957540271543
1020380396107
118709225275
123b4942a863
131bca4441a6
14db4a260b1
157e435ad3c
hex4bec42a4b

20380396107 has 4 divisors (see below), whose sum is σ = 27173861480. Its totient is φ = 13586930736.

The previous prime is 20380396081. The next prime is 20380396121. The reversal of 20380396107 is 70169308302.

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

It is not a de Polignac number, because 20380396107 - 220 = 20379347531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20380396147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3396732682 + ... + 3396732687.

It is an arithmetic number, because the mean of its divisors is an integer number (6793465370).

Almost surely, 220380396107 is an apocalyptic number.

20380396107 is a deficient number, since it is larger than the sum of its proper divisors (6793465373).

20380396107 is an equidigital number, since it uses as much as digits as its factorization.

20380396107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6793465372.

The product of its (nonzero) digits is 54432, while the sum is 39.

The spelling of 20380396107 in words is "twenty billion, three hundred eighty million, three hundred ninety-six thousand, one hundred seven".

Divisors: 1 3 6793465369 20380396107