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764400103 = 3989191627
BaseRepresentation
bin101101100011111…
…101000111100111
31222021100112210221
4231203331013213
53031141300403
6203503425211
724641202505
oct5543750747
91867315727
10764400103
11362536125
12193bb5207
13c249a06c
147373d675
1547193dbd
hex2d8fd1e7

764400103 has 4 divisors (see below), whose sum is σ = 764595720. Its totient is φ = 764204488.

The previous prime is 764400097. The next prime is 764400107. The reversal of 764400103 is 301004467.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301004467 = 2931027319.

It is a cyclic number.

It is not a de Polignac number, because 764400103 - 29 = 764399591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764400107) 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, 91825 + ... + 99802.

It is an arithmetic number, because the mean of its divisors is an integer number (191148930).

Almost surely, 2764400103 is an apocalyptic number.

764400103 is a deficient number, since it is larger than the sum of its proper divisors (195617).

764400103 is a wasteful number, since it uses less digits than its factorization.

764400103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195616.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 764400103 is about 27647.7865841011. The cubic root of 764400103 is about 914.3383006968.

The spelling of 764400103 in words is "seven hundred sixty-four million, four hundred thousand, one hundred three".

Divisors: 1 3989 191627 764400103