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13003231000 = 235313003231
BaseRepresentation
bin11000001110000110…
…11000111100011000
31020120012212120120011
430013003120330120
5203112311343000
65550144211304
7640142432314
oct140703307430
936505776504
1013003231000
115572a91a01
12262a909b34
1312c2c63536
148b4d6ab44
1551188e2ba
hex3070d8f18

13003231000 has 32 divisors (see below), whose sum is σ = 30427562880. Its totient is φ = 5201292000.

The previous prime is 13003230979. The next prime is 13003231013. The reversal of 13003231000 is 13230031.

It is a super-2 number, since 2×130032310002 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6500616 + ... + 6502615.

It is an arithmetic number, because the mean of its divisors is an integer number (950861340).

Almost surely, 213003231000 is an apocalyptic number.

13003231000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13003231000 is an abundant number, since it is smaller than the sum of its proper divisors (17424331880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13003231000 is a wasteful number, since it uses less digits than its factorization.

13003231000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13003252 (or 13003238 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 13.

Adding to 13003231000 its reverse (13230031), we get a palindrome (13016461031).

The spelling of 13003231000 in words is "thirteen billion, three million, two hundred thirty-one thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 200 250 500 1000 13003231 26006462 52012924 65016155 104025848 130032310 260064620 325080775 520129240 650161550 1300323100 1625403875 2600646200 3250807750 6501615500 13003231000