Search a number
-
+
189833868237024 = 253211232647984253
BaseRepresentation
bin101011001010011100100100…
…010010000101100011100000
3220220010221101200011211020200
4223022130210102011203200
5144340214230232041044
61511424250344105200
754662021136153054
oct5312344422054340
9826127350154220
10189833868237024
115553a10072a970
121935b0aa465200
1381c0345715c3b
1434c40188b3c64
1516e30341ea369
hexaca7244858e0

189833868237024 has 288 divisors, whose sum is σ = 614754276724224. Its totient is φ = 55003466327040.

The previous prime is 189833868237023. The next prime is 189833868237163. The reversal of 189833868237024 is 420732868338981.

189833868237024 is a `hidden beast` number, since 1 + 8 + 9 + 8 + 3 + 386 + 8 + 237 + 0 + 2 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189833868237023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 192378882 + ... + 193363134.

It is an arithmetic number, because the mean of its divisors is an integer number (2134563460848).

Almost surely, 2189833868237024 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189833868237024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307377138362112).

189833868237024 is an abundant number, since it is smaller than the sum of its proper divisors (424920408487200).

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

189833868237024 is a wasteful number, since it uses less digits than its factorization.

189833868237024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986950 (or 986939 counting only the distinct ones).

The product of its (nonzero) digits is 668860416, while the sum is 72.

The spelling of 189833868237024 in words is "one hundred eighty-nine trillion, eight hundred thirty-three billion, eight hundred sixty-eight million, two hundred thirty-seven thousand, twenty-four".