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2308008139369 = 15192132
BaseRepresentation
bin100001100101100000000…
…000010101101001101001
322011122101001111111201121
4201211200000111221221
5300303300040424434
64524141224215241
7325514410330462
oct41454000255151
98148331444647
102308008139369
1180a903474789
1231338330a521
1313984b4c5a8a
147d9cb3b7d69
15400837437b4
hex21960015a69

2308008139369 has 3 divisors (see below), whose sum is σ = 2308009658583. Its totient is φ = 2308006620156.

The previous prime is 2308008139351. The next prime is 2308008139391. The reversal of 2308008139369 is 9639318008032.

The square root of 2308008139369 is 1519213.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 868036939225 + 1439971200144 = 931685^2 + 1199988^2 .

It is not a de Polignac number, because 2308008139369 - 211 = 2308008137321 is a prime.

It is a super-2 number, since 2×23080081393692 (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2308008139309) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 759607 + ... + 2278819.

It is an arithmetic number, because the mean of its divisors is an integer number (769336552861).

Almost surely, 22308008139369 is an apocalyptic number.

2308008139369 is the 1519213-rd square number.

2308008139369 is the 759607-th centered octagonal number.

It is an amenable number.

2308008139369 is a deficient number, since it is larger than the sum of its proper divisors (1519214).

2308008139369 is an frugal number, since it uses more digits than its factorization.

2308008139369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3038426 (or 1519213 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 52.

The spelling of 2308008139369 in words is "two trillion, three hundred eight billion, eight million, one hundred thirty-nine thousand, three hundred sixty-nine".

Divisors: 1 1519213 2308008139369