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125140240 = 2452322957
BaseRepresentation
bin1110111010101…
…11110100010000
322201110210010201
413131113310100
5224013441430
620230104544
73046450231
oct735276420
9281423121
10125140240
1164702795
1235aab154
131cc067a4
1412897088
15aebd8ca
hex7757d10

125140240 has 60 divisors (see below), whose sum is σ = 304253964. Its totient is φ = 47863552.

The previous prime is 125140231. The next prime is 125140243. The reversal of 125140240 is 42041521.

It can be written as a sum of positive squares in 2 ways, for example, as 33593616 + 91546624 = 5796^2 + 9568^2 .

It is not an unprimeable number, because it can be changed into a prime (125140243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40842 + ... + 43798.

Almost surely, 2125140240 is an apocalyptic number.

125140240 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 125140240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152126982).

125140240 is an abundant number, since it is smaller than the sum of its proper divisors (179113724).

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

125140240 is a wasteful number, since it uses less digits than its factorization.

125140240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3016 (or 2987 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 125140240 is about 11186.6098528553. The cubic root of 125140240 is about 500.1869167822.

Adding to 125140240 its reverse (42041521), we get a palindrome (167181761).

The spelling of 125140240 in words is "one hundred twenty-five million, one hundred forty thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 23 40 46 80 92 115 184 230 368 460 529 920 1058 1840 2116 2645 2957 4232 5290 5914 8464 10580 11828 14785 21160 23656 29570 42320 47312 59140 68011 118280 136022 236560 272044 340055 544088 680110 1088176 1360220 1564253 2720440 3128506 5440880 6257012 7821265 12514024 15642530 25028048 31285060 62570120 125140240