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125230520 = 23519533109
BaseRepresentation
bin1110111011011…
…01110110111000
322201122100222102
413131231312320
5224024334040
620232042532
73050304362
oct735556670
9281570872
10125230520
11647645a8
1235b33448
131cc388cc
14128bbd32
15aeda515
hex776ddb8

125230520 has 64 divisors (see below), whose sum is σ = 302292000. Its totient is φ = 46545408.

The previous prime is 125230489. The next prime is 125230531. The reversal of 125230520 is 25032521.

It is a super-3 number, since 3×1252305203 (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 125230492 and 125230501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38726 + ... + 41834.

Almost surely, 2125230520 is an apocalyptic number.

125230520 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 125230520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151146000).

125230520 is an abundant number, since it is smaller than the sum of its proper divisors (177061480).

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

125230520 is a wasteful number, since it uses less digits than its factorization.

125230520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3192 (or 3188 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 125230520 is about 11190.6443067412. The cubic root of 125230520 is about 500.3071712530.

The spelling of 125230520 in words is "one hundred twenty-five million, two hundred thirty thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 19 20 38 40 53 76 95 106 152 190 212 265 380 424 530 760 1007 1060 2014 2120 3109 4028 5035 6218 8056 10070 12436 15545 20140 24872 31090 40280 59071 62180 118142 124360 164777 236284 295355 329554 472568 590710 659108 823885 1181420 1318216 1647770 2362840 3130763 3295540 6261526 6591080 12523052 15653815 25046104 31307630 62615260 125230520