Search a number
-
+
1238897088 = 26321113389
BaseRepresentation
bin100100111011000…
…0001000111000000
310012100012111022100
41021312001013000
510014124201323
6322533510400
742462310602
oct11166010700
93170174270
101238897088
115863637a0
122a6aa2400
13169893000
14ba777172
1573b70943
hex49d811c0

1238897088 has 336 divisors, whose sum is σ = 4243730400. Its totient is φ = 342650880.

The previous prime is 1238897087. The next prime is 1238897183. The reversal of 1238897088 is 8807988321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1238897087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13920148 + ... + 13920236.

It is an arithmetic number, because the mean of its divisors is an integer number (12630150).

Almost surely, 21238897088 is an apocalyptic number.

1238897088 is a gapful number since it is divisible by the number (18) 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 1238897088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2121865200).

1238897088 is an abundant number, since it is smaller than the sum of its proper divisors (3004833312).

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

1238897088 is a wasteful number, since it uses less digits than its factorization.

1238897088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 54.

The square root of 1238897088 is about 35197.9699414611. The cubic root of 1238897088 is about 1074.0184552034.

The spelling of 1238897088 in words is "one billion, two hundred thirty-eight million, eight hundred ninety-seven thousand, eighty-eight".