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230400311232 = 26373131911409
BaseRepresentation
bin1101011010010011101…
…1011011111111000000
3211000200222211111122110
43112210323123333000
512233324434424412
6253502222135320
722434351222000
oct3264473337700
9730628744573
10230400311232
1189791a72a63
12387a0721540
131895a604410
14b219772000
155ed72c3d3c
hex35a4edbfc0

230400311232 has 448 divisors, whose sum is σ = 770144256000. Its totient is φ = 60403875840.

The previous prime is 230400311179. The next prime is 230400311257. The reversal of 230400311232 is 232113004032.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 230400311199 and 230400311208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 163519744 + ... + 163521152.

It is an arithmetic number, because the mean of its divisors is an integer number (1719072000).

Almost surely, 2230400311232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 230400311232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (385072128000).

230400311232 is an abundant number, since it is smaller than the sum of its proper divisors (539743944768).

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

230400311232 is a wasteful number, since it uses less digits than its factorization.

230400311232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1649 (or 1625 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 230400311232 its reverse (232113004032), we get a palindrome (462513315264).

The spelling of 230400311232 in words is "two hundred thirty billion, four hundred million, three hundred eleven thousand, two hundred thirty-two".