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1830305097 = 32203367233
BaseRepresentation
bin110110100011000…
…0011110101001001
311201120001010120200
41231012003311021
512222024230342
6501341442413
763233223315
oct15506036511
94646033520
101830305097
1185a183345
12430b70409
13232270b8a
14135124b45
15aaa4294c
hex6d183d49

1830305097 has 6 divisors (see below), whose sum is σ = 2643774042. Its totient is φ = 1220203392.

The previous prime is 1830305083. The next prime is 1830305111. The reversal of 1830305097 is 7905030381.

It is an interprime number because it is at equal distance from previous prime (1830305083) and next prime (1830305111).

It can be written as a sum of positive squares in only one way, i.e., 1697110416 + 133194681 = 41196^2 + 11541^2 .

It is not a de Polignac number, because 1830305097 - 26 = 1830305033 is a prime.

It is a super-3 number, since 3×18303050973 (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1830305027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 101683608 + ... + 101683625.

It is an arithmetic number, because the mean of its divisors is an integer number (440629007).

Almost surely, 21830305097 is an apocalyptic number.

It is an amenable number.

1830305097 is a deficient number, since it is larger than the sum of its proper divisors (813468945).

1830305097 is a wasteful number, since it uses less digits than its factorization.

1830305097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203367239 (or 203367236 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 1830305097 is about 42782.0651324828. The cubic root of 1830305097 is about 1223.2291719273.

The spelling of 1830305097 in words is "one billion, eight hundred thirty million, three hundred five thousand, ninety-seven".

Divisors: 1 3 9 203367233 610101699 1830305097