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230311231000 = 23531311758101
BaseRepresentation
bin1101011001111110011…
…1100111111000011000
3211000110210012202112121
43112133213213320120
512233134133343000
6253445320551024
722432220106604
oct3263747477030
9730423182477
10230311231000
118974675a734
1238776922474
1318945015016
14b20b9c4504
155ece579b1a
hex359f9e7e18

230311231000 has 64 divisors (see below), whose sum is σ = 543042545760. Its totient is φ = 91421200000.

The previous prime is 230311230997. The next prime is 230311231057. The reversal of 230311231000 is 132113032.

It is a super-2 number, since 2×2303112310002 (a number of 24 digits) 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 (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 748051 + ... + 1010050.

Almost surely, 2230311231000 is an apocalyptic number.

230311231000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230311231000 is an abundant number, since it is smaller than the sum of its proper divisors (312731314760).

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

230311231000 is a wasteful number, since it uses less digits than its factorization.

230311231000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1758253 (or 1758239 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 230311231000 its reverse (132113032), we get a palindrome (230443344032).

The spelling of 230311231000 in words is "two hundred thirty billion, three hundred eleven million, two hundred thirty-one thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 131 200 250 262 500 524 655 1000 1048 1310 2620 3275 5240 6550 13100 16375 26200 32750 65500 131000 1758101 3516202 7032404 8790505 14064808 17581010 35162020 43952525 70324040 87905050 175810100 219762625 230311231 351620200 439525250 460622462 879050500 921244924 1151556155 1758101000 1842489848 2303112310 4606224620 5757780775 9212449240 11515561550 23031123100 28788903875 46062246200 57577807750 115155615500 230311231000