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380396144369 = 2711691402801
BaseRepresentation
bin1011000100100010110…
…00001000011011110001
31100100212110110022122202
411202101120020123301
522213022403104434
6450430201312545
736324366606653
oct5422130103361
91310773408582
10380396144369
1113736378551a
1261881a95755
1329b43055077
14145a875a6d3
159d6582da7e
hex58916086f1

380396144369 has 4 divisors (see below), whose sum is σ = 380397818340. Its totient is φ = 380394470400.

The previous prime is 380396144363. The next prime is 380396144431. The reversal of 380396144369 is 963441693083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 963441693083 = 3131078764293.

It can be written as a sum of positive squares in 2 ways, for example, as 253902108769 + 126494035600 = 503887^2 + 355660^2 .

It is a cyclic number.

It is not a de Polignac number, because 380396144369 - 28 = 380396144113 is a prime.

It is a super-2 number, since 2×3803961443692 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (380396144363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 430232 + ... + 972569.

It is an arithmetic number, because the mean of its divisors is an integer number (95099454585).

Almost surely, 2380396144369 is an apocalyptic number.

It is an amenable number.

380396144369 is a deficient number, since it is larger than the sum of its proper divisors (1673971).

380396144369 is a wasteful number, since it uses less digits than its factorization.

380396144369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1673970.

The product of its (nonzero) digits is 10077696, while the sum is 56.

The spelling of 380396144369 in words is "three hundred eighty billion, three hundred ninety-six million, one hundred forty-four thousand, three hundred sixty-nine".

Divisors: 1 271169 1402801 380396144369