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1230331032 = 233472947199
BaseRepresentation
bin100100101010101…
…0101110010011000
310011202002021220000
41021111111302120
510004431043112
6322030133000
742326432640
oct11125256230
93152067800
101230331032
11581542a07
122a4051160
13167b84038
14b9587520
157302c7dc
hex49555c98

1230331032 has 320 divisors, whose sum is σ = 4181760000. Its totient is φ = 330511104.

The previous prime is 1230331027. The next prime is 1230331049. The reversal of 1230331032 is 2301330321.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1230330996 and 1230331014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 6182469 + ... + 6182667.

It is an arithmetic number, because the mean of its divisors is an integer number (13068000).

Almost surely, 21230331032 is an apocalyptic number.

1230331032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1230331032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2090880000).

1230331032 is an abundant number, since it is smaller than the sum of its proper divisors (2951428968).

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

1230331032 is a wasteful number, since it uses less digits than its factorization.

1230331032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300 (or 287 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 1230331032 is about 35076.0749229443. The cubic root of 1230331032 is about 1071.5373806752.

Adding to 1230331032 its reverse (2301330321), we get a palindrome (3531661353).

The spelling of 1230331032 in words is "one billion, two hundred thirty million, three hundred thirty-one thousand, thirty-two".