Search a number
-
+
131164234042400 = 25521379730015273
BaseRepresentation
bin11101110100101100001101…
…100100111100110000100000
3122012102011210222202111111222
4131310230031210330300200
5114142443322403324100
61142544003421554212
736425205664610606
oct3564541544746040
9565364728674458
10131164234042400
113887a491743a79
1212864610715968
135825971055270
142456550593876
151026d39353485
hex774b0d93cc20

131164234042400 has 288 divisors, whose sum is σ = 345449034877968. Its totient is φ = 48343818240000.

The previous prime is 131164234042267. The next prime is 131164234042403. The reversal of 131164234042400 is 4240432461131.

It is a happy number.

It can be written as a sum of positive squares in 24 ways, for example, as 13686122674576 + 117478111367824 = 3699476^2 + 10838732^2 .

It is not an unprimeable number, because it can be changed into a prime (131164234042403) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24874686164 + ... + 24874691436.

Almost surely, 2131164234042400 is an apocalyptic number.

131164234042400 is a gapful number since it is divisible by the number (10) 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 131164234042400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172724517438984).

131164234042400 is an abundant number, since it is smaller than the sum of its proper divisors (214284800835568).

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

131164234042400 is a wasteful number, since it uses less digits than its factorization.

131164234042400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9104 (or 9091 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 35.

The spelling of 131164234042400 in words is "one hundred thirty-one trillion, one hundred sixty-four billion, two hundred thirty-four million, forty-two thousand, four hundred".