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125424124 = 2273113809
BaseRepresentation
bin1110111100111…
…01000111111100
322202000012112221
413132131013330
5224102032444
620240135124
73052042000
oct736350774
9282005487
10125424124
1164887001
12360074a4
131cca5a77
141292c700
15b027a84
hex779d1fc

125424124 has 48 divisors (see below), whose sum is σ = 258552000. Its totient is φ = 53211648.

The previous prime is 125424121. The next prime is 125424137. The reversal of 125424124 is 421424521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125424121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154632 + ... + 155440.

It is an arithmetic number, because the mean of its divisors is an integer number (5386500).

Almost surely, 2125424124 is an apocalyptic number.

125424124 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 125424124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129276000).

125424124 is an abundant number, since it is smaller than the sum of its proper divisors (133127876).

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

125424124 is a wasteful number, since it uses less digits than its factorization.

125424124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947 (or 931 counting only the distinct ones).

The product of its digits is 2560, while the sum is 25.

The square root of 125424124 is about 11199.2912275733. The cubic root of 125424124 is about 500.5648602921.

Adding to 125424124 its reverse (421424521), we get a palindrome (546848645).

The spelling of 125424124 in words is "one hundred twenty-five million, four hundred twenty-four thousand, one hundred twenty-four".

Divisors: 1 2 4 7 14 28 49 98 113 196 226 343 452 686 791 809 1372 1582 1618 3164 3236 5537 5663 11074 11326 22148 22652 38759 39641 77518 79282 91417 155036 158564 182834 277487 365668 554974 639919 1109948 1279838 2559676 4479433 8958866 17917732 31356031 62712062 125424124