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1238248284 = 223713101103109
BaseRepresentation
bin100100111001110…
…0010101101011100
310012021222112022120
41021303202231130
510013442421114
6322511542540
742453636210
oct11163425534
93167875276
101238248284
11585a60299
122a682aa50
131696c68c0
14ba648940
1573a935a9
hex49ce2b5c

1238248284 has 192 divisors, whose sum is σ = 3659335680. Its totient is φ = 317260800.

The previous prime is 1238248267. The next prime is 1238248289. The reversal of 1238248284 is 4828428321.

1238248284 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1238248289) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11360022 + ... + 11360130.

It is an arithmetic number, because the mean of its divisors is an integer number (19059040).

Almost surely, 21238248284 is an apocalyptic number.

1238248284 is a gapful number since it is divisible by the number (14) 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 1238248284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1829667840).

1238248284 is an abundant number, since it is smaller than the sum of its proper divisors (2421087396).

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

1238248284 is a wasteful number, since it uses less digits than its factorization.

1238248284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340 (or 338 counting only the distinct ones).

The product of its digits is 196608, while the sum is 42.

The square root of 1238248284 is about 35188.7522370430. The cubic root of 1238248284 is about 1073.8309364946.

The spelling of 1238248284 in words is "one billion, two hundred thirty-eight million, two hundred forty-eight thousand, two hundred eighty-four".