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1380360845 = 54352112323
BaseRepresentation
bin101001001000110…
…1010001010001101
310120012101121002202
41102101222022031
510311333021340
6344545531245
746130605433
oct12221521215
93505347082
101380360845
116491a5596
12326343b25
1318cc93686
14d147cd53
15812b5c15
hex5246a28d

1380360845 has 16 divisors (see below), whose sum is σ = 1698345792. Its totient is φ = 1076449920.

The previous prime is 1380360833. The next prime is 1380360851. The reversal of 1380360845 is 5480630831.

It is not a de Polignac number, because 1380360845 - 24 = 1380360829 is a prime.

It is a super-2 number, since 2×13803608452 = 3810792124818228050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1380360799 and 1380360808.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 105854 + ... + 118176.

It is an arithmetic number, because the mean of its divisors is an integer number (106146612).

Almost surely, 21380360845 is an apocalyptic number.

It is an amenable number.

1380360845 is a deficient number, since it is larger than the sum of its proper divisors (317984947).

1380360845 is a wasteful number, since it uses less digits than its factorization.

1380360845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12892.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 1380360845 is about 37153.2077349991. The cubic root of 1380360845 is about 1113.4333121537.

The spelling of 1380360845 in words is "one billion, three hundred eighty million, three hundred sixty thousand, eight hundred forty-five".

Divisors: 1 5 43 215 521 2605 12323 22403 61615 112015 529889 2649445 6420283 32101415 276072169 1380360845