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126983140 = 2256349157
BaseRepresentation
bin1111001000110…
…01101111100100
322211221102010021
413210121233210
5230001430030
620333404524
73101224144
oct744315744
9284842107
10126983140
1165751349
1236639744
132040056b
1412c16924
15b23497a
hex7919be4

126983140 has 12 divisors (see below), whose sum is σ = 266664636. Its totient is φ = 50793248.

The previous prime is 126983117. The next prime is 126983167. The reversal of 126983140 is 41389621.

It can be written as a sum of positive squares in 2 ways, for example, as 24285184 + 102697956 = 4928^2 + 10134^2 .

It is a super-2 number, since 2×1269831402 = 32249435688519200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 126983096 and 126983105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3174559 + ... + 3174598.

It is an arithmetic number, because the mean of its divisors is an integer number (22222053).

Almost surely, 2126983140 is an apocalyptic number.

126983140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126983140 is an abundant number, since it is smaller than the sum of its proper divisors (139681496).

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

126983140 is a wasteful number, since it uses less digits than its factorization.

126983140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6349166 (or 6349164 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 126983140 is about 11268.6796032188. The cubic root of 126983140 is about 502.6303251813.

The spelling of 126983140 in words is "one hundred twenty-six million, nine hundred eighty-three thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 6349157 12698314 25396628 31745785 63491570 126983140