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126485660 = 22572196793
BaseRepresentation
bin1111000101000…
…00010010011100
322211000010201002
413202200102130
5224340020120
620315005432
73064052600
oct742402234
9284003632
10126485660
1165441604
1236439878
1320287cb2
1412b27500
15b187375
hex78a049c

126485660 has 72 divisors (see below), whose sum is σ = 325296720. Its totient is φ = 41078016.

The previous prime is 126485657. The next prime is 126485669. The reversal of 126485660 is 66584621.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126485669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15224 + ... + 22016.

It is an arithmetic number, because the mean of its divisors is an integer number (4518010).

Almost surely, 2126485660 is an apocalyptic number.

126485660 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 126485660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162648360).

126485660 is an abundant number, since it is smaller than the sum of its proper divisors (198811060).

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

126485660 is a wasteful number, since it uses less digits than its factorization.

126485660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6835 (or 6826 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 126485660 is about 11246.5843703766. The cubic root of 126485660 is about 501.9730836401.

The spelling of 126485660 in words is "one hundred twenty-six million, four hundred eighty-five thousand, six hundred sixty".

Divisors: 1 2 4 5 7 10 14 19 20 28 35 38 49 70 76 95 98 133 140 190 196 245 266 380 490 532 665 931 980 1330 1862 2660 3724 4655 6793 9310 13586 18620 27172 33965 47551 67930 95102 129067 135860 190204 237755 258134 332857 475510 516268 645335 665714 903469 951020 1290670 1331428 1664285 1806938 2581340 3328570 3613876 4517345 6324283 6657140 9034690 12648566 18069380 25297132 31621415 63242830 126485660