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12300031000 = 235329424139
BaseRepresentation
bin10110111010010001…
…11001010000011000
31011202012200022111201
423131020321100120
5200142301443000
65352304203544
7613543352455
oct133510712030
934665608451
1012300031000
115242057384
1224733095b4
13121037376a
148497dc82c
154bec8896a
hex2dd239418

12300031000 has 64 divisors (see below), whose sum is σ = 29774628000. Its totient is φ = 4750345600.

The previous prime is 12300030997. The next prime is 12300031039. The reversal of 12300031000 is 13000321.

It is a super-2 number, since 2×123000310002 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183070 + ... + 241069.

Almost surely, 212300031000 is an apocalyptic number.

12300031000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12300031000 is an abundant number, since it is smaller than the sum of its proper divisors (17474597000).

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

12300031000 is a wasteful number, since it uses less digits than its factorization.

12300031000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424189 (or 424175 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

Adding to 12300031000 its reverse (13000321), we get a palindrome (12313031321).

The spelling of 12300031000 in words is "twelve billion, three hundred million, thirty-one thousand".

Divisors: 1 2 4 5 8 10 20 25 29 40 50 58 100 116 125 145 200 232 250 290 500 580 725 1000 1160 1450 2900 3625 5800 7250 14500 29000 424139 848278 1696556 2120695 3393112 4241390 8482780 10603475 12300031 16965560 21206950 24600062 42413900 49200124 53017375 61500155 84827800 98400248 106034750 123000310 212069500 246000620 307500775 424139000 492001240 615001550 1230003100 1537503875 2460006200 3075007750 6150015500 12300031000