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230101301220 = 2235717317011483
BaseRepresentation
bin1101011001001100011…
…0110011011111100100
3210222221011012020000120
43112103012303133210
512232221413114340
6253412421241540
722424060534460
oct3262306633744
9728834166016
10230101301220
118964920534a
12387185632b0
131891069210b
14b1cbb794a0
155ebae0d4d0
hex35931b37e4

230101301220 has 384 divisors, whose sum is σ = 806478446592. Its totient is φ = 47803392000.

The previous prime is 230101301179. The next prime is 230101301239. The reversal of 230101301220 is 22103101032.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 230101301220.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 155158599 + ... + 155160081.

It is an arithmetic number, because the mean of its divisors is an integer number (2100204288).

Almost surely, 2230101301220 is an apocalyptic number.

230101301220 is a gapful number since it is divisible by the number (20) 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 230101301220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (403239223296).

230101301220 is an abundant number, since it is smaller than the sum of its proper divisors (576377145372).

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

230101301220 is a wasteful number, since it uses less digits than its factorization.

230101301220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2251 (or 2249 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 230101301220 its reverse (22103101032), we get a palindrome (252204402252).

The spelling of 230101301220 in words is "two hundred thirty billion, one hundred one million, three hundred one thousand, two hundred twenty".