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1813200741 = 331144913597
BaseRepresentation
bin110110000010011…
…0011111101100101
311200100212010211000
41230010303331211
512203134410431
6455531103513
762634644352
oct15404637545
94610763730
101813200741
11850560610
124272a1b99
1322b862761
14132b51629
15a92b49e6
hex6c133f65

1813200741 has 32 divisors (see below), whose sum is σ = 2937168000. Its totient is φ = 1096381440.

The previous prime is 1813200731. The next prime is 1813200749. The reversal of 1813200741 is 1470023181.

It is not a de Polignac number, because 1813200741 - 25 = 1813200709 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1813200749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 126555 + ... + 140151.

It is an arithmetic number, because the mean of its divisors is an integer number (91786500).

Almost surely, 21813200741 is an apocalyptic number.

1813200741 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1813200741 is a deficient number, since it is larger than the sum of its proper divisors (1123967259).

1813200741 is a wasteful number, since it uses less digits than its factorization.

1813200741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14066 (or 14060 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 1813200741 is about 42581.6949052055. The cubic root of 1813200741 is about 1219.4068470638.

The spelling of 1813200741 in words is "one billion, eight hundred thirteen million, two hundred thousand, seven hundred forty-one".

Divisors: 1 3 9 11 27 33 99 297 449 1347 4041 4939 12123 13597 14817 40791 44451 122373 133353 149567 367119 448701 1346103 4038309 6105053 18315159 54945477 67155583 164836431 201466749 604400247 1813200741