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126353380 = 2256317669
BaseRepresentation
bin1111000011111…
…11111111100100
322210202102020211
413201333333210
5224321302010
620312105204
73062662126
oct741777744
9283672224
10126353380
116536118a
1236395204
132023ca1a
1412ad1216
15b15d08a
hex787ffe4

126353380 has 12 divisors (see below), whose sum is σ = 265342140. Its totient is φ = 50541344.

The previous prime is 126353371. The next prime is 126353407. The reversal of 126353380 is 83353621.

It can be written as a sum of positive squares in 2 ways, for example, as 99042304 + 27311076 = 9952^2 + 5226^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3158815 + ... + 3158854.

It is an arithmetic number, because the mean of its divisors is an integer number (22111845).

Almost surely, 2126353380 is an apocalyptic number.

126353380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126353380 is an abundant number, since it is smaller than the sum of its proper divisors (138988760).

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

126353380 is a wasteful number, since it uses less digits than its factorization.

126353380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6317678 (or 6317676 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 126353380 is about 11240.7019353775. The cubic root of 126353380 is about 501.7980330703.

The spelling of 126353380 in words is "one hundred twenty-six million, three hundred fifty-three thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 6317669 12635338 25270676 31588345 63176690 126353380