Search a number
-
+
301220013120 = 26351397248827
BaseRepresentation
bin1000110001000100001…
…11001010010001000000
31001210111112121010010020
410120202013022101000
514413344310404440
6350213434133440
730522340603035
oct4304207122100
91053445533106
10301220013120
11106823932204
124a465b81280
132253580c470
14108171a138c
157c7e84e3d0
hex46221ca440

301220013120 has 224 divisors, whose sum is σ = 1040562864768. Its totient is φ = 73381773312.

The previous prime is 301220013113. The next prime is 301220013121. The reversal of 301220013120 is 21310022103.

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 301220013120.

It is not an unprimeable number, because it can be changed into a prime (301220013121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1086147 + ... + 1334973.

It is an arithmetic number, because the mean of its divisors is an integer number (4645369932).

Almost surely, 2301220013120 is an apocalyptic number.

301220013120 is a gapful number since it is divisible by the number (30) 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 301220013120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (520281432384).

301220013120 is an abundant number, since it is smaller than the sum of its proper divisors (739342851648).

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

301220013120 is a wasteful number, since it uses less digits than its factorization.

301220013120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248957 (or 248947 counting only the distinct ones).

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

Adding to 301220013120 its reverse (21310022103), we get a palindrome (322530035223).

The spelling of 301220013120 in words is "three hundred one billion, two hundred twenty million, thirteen thousand, one hundred twenty".