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125445012 = 2237111271069
BaseRepresentation
bin1110111101000…
…10001110010100
322202001021012120
413132202032110
5224103220022
620240415540
73052156620
oct736421624
9282037176
10125445012
11648a0770
12360175b0
131ccb2424
1412936180
15b02dd5c
hex77a2394

125445012 has 96 divisors (see below), whose sum is σ = 368148480. Its totient is φ = 32296320.

The previous prime is 125444987. The next prime is 125445017. The reversal of 125445012 is 210544521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125445017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116814 + ... + 117882.

It is an arithmetic number, because the mean of its divisors is an integer number (3834880).

Almost surely, 2125445012 is an apocalyptic number.

125445012 is a gapful number since it is divisible by the number (12) 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 125445012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184074240).

125445012 is an abundant number, since it is smaller than the sum of its proper divisors (242703468).

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

125445012 is a wasteful number, since it uses less digits than its factorization.

125445012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221 (or 1219 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 125445012 is about 11200.2237477650. The cubic root of 125445012 is about 500.5926465958.

Adding to 125445012 its reverse (210544521), we get a palindrome (335989533).

The spelling of 125445012 in words is "one hundred twenty-five million, four hundred forty-five thousand, twelve".

Divisors: 1 2 3 4 6 7 11 12 14 21 22 28 33 42 44 66 77 84 127 132 154 231 254 308 381 462 508 762 889 924 1069 1397 1524 1778 2138 2667 2794 3207 3556 4191 4276 5334 5588 6414 7483 8382 9779 10668 11759 12828 14966 16764 19558 22449 23518 29337 29932 35277 39116 44898 47036 58674 70554 82313 89796 117348 135763 141108 164626 246939 271526 329252 407289 493878 543052 814578 950341 987756 1493393 1629156 1900682 2851023 2986786 3801364 4480179 5702046 5973572 8960358 10453751 11404092 17920716 20907502 31361253 41815004 62722506 125445012