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125420232 = 23373720177
BaseRepresentation
bin1110111100111…
…00001011001000
322202000000012210
413132130023020
5224101421412
620240105120
73052024440
oct736341310
9282000183
10125420232
1164884093
12360051a0
131cca4072
141292b120
15b02683c
hex779c2c8

125420232 has 64 divisors (see below), whose sum is σ = 368046720. Its totient is φ = 34864128.

The previous prime is 125420231. The next prime is 125420249. The reversal of 125420232 is 232024521.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 125420199 and 125420208.

It is not an unprimeable number, because it can be changed into a prime (125420231) 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, 3873 + ... + 16304.

It is an arithmetic number, because the mean of its divisors is an integer number (5750730).

Almost surely, 2125420232 is an apocalyptic number.

125420232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

125420232 is an abundant number, since it is smaller than the sum of its proper divisors (242626488).

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

125420232 is a wasteful number, since it uses less digits than its factorization.

125420232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20230 (or 20226 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 125420232 is about 11199.1174652291. The cubic root of 125420232 is about 500.5596826103.

Adding to 125420232 its reverse (232024521), we get a palindrome (357444753).

The spelling of 125420232 in words is "one hundred twenty-five million, four hundred twenty thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 37 42 56 74 84 111 148 168 222 259 296 444 518 777 888 1036 1554 2072 3108 6216 20177 40354 60531 80708 121062 141239 161416 242124 282478 423717 484248 564956 746549 847434 1129912 1493098 1694868 2239647 2986196 3389736 4479294 5225843 5972392 8958588 10451686 15677529 17917176 20903372 31355058 41806744 62710116 125420232