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126667813480 = 23513243591949
BaseRepresentation
bin111010111110111111…
…1010111001001101000
3110002221200211122001021
41311331333113021220
54033403430012410
6134105042502224
712102642435565
oct1657577271150
9402850748037
10126667813480
11497a075107a
1220670964974
13bc38733230
1461b8b1186c
153465553eda
hex1d7dfd7268

126667813480 has 32 divisors (see below), whose sum is σ = 306925857000. Its totient is φ = 46769654016.

The previous prime is 126667813477. The next prime is 126667813511. The reversal of 126667813480 is 84318766621.

126667813480 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 49015303236 + 77652510244 = 221394^2 + 278662^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121795455 + ... + 121796494.

Almost surely, 2126667813480 is an apocalyptic number.

126667813480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126667813480 is an abundant number, since it is smaller than the sum of its proper divisors (180258043520).

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

126667813480 is a wasteful number, since it uses less digits than its factorization.

126667813480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243591973 (or 243591969 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 52.

The spelling of 126667813480 in words is "one hundred twenty-six billion, six hundred sixty-seven million, eight hundred thirteen thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 243591949 487183898 974367796 1217959745 1948735592 2435919490 3166695337 4871838980 6333390674 9743677960 12666781348 15833476685 25333562696 31666953370 63333906740 126667813480