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1308730190 = 25424130859
BaseRepresentation
bin100111000000001…
…1010001101001110
310101012121101022112
41032000122031032
510140013331230
6333510344022
744301010625
oct11600321516
93335541275
101308730190
116118203a9
1230635b012
1317b1a3881
14c5b546bc
1579d66d95
hex4e01a34e

1308730190 has 16 divisors (see below), whose sum is σ = 2356346160. Its totient is φ = 523351680.

The previous prime is 1308730187. The next prime is 1308730211. The reversal of 1308730190 is 910378031.

It is a super-2 number, since 2×13087301902 = 3425549420434872200, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 26981 + ... + 57839.

It is an arithmetic number, because the mean of its divisors is an integer number (147271635).

Almost surely, 21308730190 is an apocalyptic number.

1308730190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1308730190 is a deficient number, since it is larger than the sum of its proper divisors (1047615970).

1308730190 is a wasteful number, since it uses less digits than its factorization.

1308730190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35107.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 1308730190 is about 36176.3761313927. The cubic root of 1308730190 is about 1093.8305286450.

The spelling of 1308730190 in words is "one billion, three hundred eight million, seven hundred thirty thousand, one hundred ninety".

Divisors: 1 2 5 10 4241 8482 21205 30859 42410 61718 154295 308590 130873019 261746038 654365095 1308730190