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103378472977 = 137952190229
BaseRepresentation
bin110000001000111010…
…1100101000000010001
3100212211121211112220111
41200101311211000101
53143204342113402
6115254051241321
710316546343643
oct1402165450021
9325747745814
10103378472977
113a92a4a892a
12180512a9241
139996739090
145009a26893
152a50b3d9d7
hex1811d65011

103378472977 has 4 divisors (see below), whose sum is σ = 111330663220. Its totient is φ = 95426282736.

The previous prime is 103378472957. The next prime is 103378473007. The reversal of 103378472977 is 779274873301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 779274873301 = 1303598062067.

It can be written as a sum of positive squares in 2 ways, for example, as 71464794241 + 31913678736 = 267329^2 + 178644^2 .

It is a cyclic number.

It is not a de Polignac number, because 103378472977 - 27 = 103378472849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103378472947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3976095102 + ... + 3976095127.

It is an arithmetic number, because the mean of its divisors is an integer number (27832665805).

Almost surely, 2103378472977 is an apocalyptic number.

It is an amenable number.

103378472977 is a deficient number, since it is larger than the sum of its proper divisors (7952190243).

103378472977 is an equidigital number, since it uses as much as digits as its factorization.

103378472977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7952190242.

The product of its (nonzero) digits is 12446784, while the sum is 58.

The spelling of 103378472977 in words is "one hundred three billion, three hundred seventy-eight million, four hundred seventy-two thousand, nine hundred seventy-seven".

Divisors: 1 13 7952190229 103378472977