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2380917561 = 311673732887
BaseRepresentation
bin1000110111101001…
…1110101100111001
320010221010010212220
42031322132230321
514334003330221
61032131154253
7113000315421
oct21572365471
96127103786
102380917561
111011a69670
12565445989
132bc367079
141882d3481
15de0570c6
hex8de9eb39

2380917561 has 32 divisors (see below), whose sum is σ = 3525485568. Its totient is φ = 1417141440.

The previous prime is 2380917559. The next prime is 2380917599. The reversal of 2380917561 is 1657190832.

It is not a de Polignac number, because 2380917561 - 21 = 2380917559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2380917361) 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 31 ways as a sum of consecutive naturals, for example, 823260 + ... + 826146.

It is an arithmetic number, because the mean of its divisors is an integer number (110171424).

Almost surely, 22380917561 is an apocalyptic number.

It is an amenable number.

2380917561 is a deficient number, since it is larger than the sum of its proper divisors (1144568007).

2380917561 is a wasteful number, since it uses less digits than its factorization.

2380917561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3341.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 2380917561 is about 48794.6468477844. The cubic root of 2380917561 is about 1335.3080056346.

The spelling of 2380917561 in words is "two billion, three hundred eighty million, nine hundred seventeen thousand, five hundred sixty-one".

Divisors: 1 3 11 33 67 201 373 737 1119 2211 2887 4103 8661 12309 24991 31757 74973 95271 193429 274901 580287 824703 1076851 2127719 3230553 6383157 11845361 35536083 72149017 216447051 793639187 2380917561