Search a number
-
+
88394146722 = 23472472712
BaseRepresentation
bin101001001010010110…
…0111010001110100010
322110011100011220120000
41102110230322032202
52422012400143342
6104335133200430
76246326564400
oct1222454721642
9273140156500
1088394146722
1134540211822
121516b030116
13844921a23b
1443c7922470
1524753c344c
hex1494b3a3a2

88394146722 has 270 divisors, whose sum is σ = 238774988331. Its totient is φ = 24369977520.

The previous prime is 88394146721. The next prime is 88394146723. The reversal of 88394146722 is 22764149388.

It is an interprime number because it is at equal distance from previous prime (88394146721) and next prime (88394146723).

It can be written as a sum of positive squares in only one way, i.e., 44197073361 + 44197073361 = 210231^2 + 210231^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=210231.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (88394146721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 1244987947 + ... + 1244988017.

Almost surely, 288394146722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 88394146722

88394146722 is an abundant number, since it is smaller than the sum of its proper divisors (150380841609).

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

88394146722 is an equidigital number, since it uses as much as digits as its factorization.

88394146722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264 (or 130 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 54.

The spelling of 88394146722 in words is "eighty-eight billion, three hundred ninety-four million, one hundred forty-six thousand, seven hundred twenty-two".