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125423144 = 237211172959
BaseRepresentation
bin1110111100111…
…00111000101000
322202000011012122
413132130320220
5224102020034
620240130412
73052036100
oct736347050
9282004178
10125423144
11648862a0
1236006a08
131cca54a2
141292c200
15b02762e
hex779ce28

125423144 has 192 divisors, whose sum is σ = 332424000. Its totient is φ = 43653120.

The previous prime is 125423101. The next prime is 125423147. The reversal of 125423144 is 441324521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125423147) 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, 2125787 + ... + 2125845.

It is an arithmetic number, because the mean of its divisors is an integer number (1731375).

Almost surely, 2125423144 is an apocalyptic number.

125423144 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 125423144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166212000).

125423144 is an abundant number, since it is smaller than the sum of its proper divisors (207000856).

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

125423144 is a wasteful number, since it uses less digits than its factorization.

125423144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 125 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

The square root of 125423144 is about 11199.2474747190. The cubic root of 125423144 is about 500.5635565693.

Adding to 125423144 its reverse (441324521), we get a palindrome (566747665).

The spelling of 125423144 in words is "one hundred twenty-five million, four hundred twenty-three thousand, one hundred forty-four".