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126052420 = 2251323107197
BaseRepresentation
bin1111000001101…
…10100001000100
322210012010102011
413200312201010
5224232134140
620301424004
73060266524
oct740664104
9283163364
10126052420
116517605a
123626b004
1320165a40
1412a53684
15b0edcea
hex7836844

126052420 has 96 divisors (see below), whose sum is σ = 301771008. Its totient is φ = 43878912.

The previous prime is 126052387. The next prime is 126052427. The reversal of 126052420 is 24250621.

It is a junction number, because it is equal to n+sod(n) for n = 126052391 and 126052400.

It is not an unprimeable number, because it can be changed into a prime (126052427) 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 31 ways as a sum of consecutive naturals, for example, 639762 + ... + 639958.

It is an arithmetic number, because the mean of its divisors is an integer number (3143448).

Almost surely, 2126052420 is an apocalyptic number.

126052420 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 126052420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150885504).

126052420 is an abundant number, since it is smaller than the sum of its proper divisors (175718588).

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

126052420 is a wasteful number, since it uses less digits than its factorization.

126052420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349 (or 347 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 126052420 is about 11227.3068899002. The cubic root of 126052420 is about 501.3993068939.

The spelling of 126052420 in words is "one hundred twenty-six million, fifty-two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 13 20 23 26 46 52 65 92 107 115 130 197 214 230 260 299 394 428 460 535 598 788 985 1070 1196 1391 1495 1970 2140 2461 2561 2782 2990 3940 4531 4922 5122 5564 5980 6955 9062 9844 10244 12305 12805 13910 18124 21079 22655 24610 25610 27820 31993 42158 45310 49220 51220 58903 63986 84316 90620 105395 117806 127972 159965 210790 235612 274027 294515 319930 421580 484817 548054 589030 639860 969634 1096108 1178060 1370135 1939268 2424085 2740270 4848170 5480540 6302621 9696340 12605242 25210484 31513105 63026210 126052420