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126983444 = 2274535123
BaseRepresentation
bin1111001000110…
…01110100010100
322211221102112112
413210121310110
5230001432234
620333410152
73101225060
oct744316424
9284842475
10126983444
11657515a5
1236639958
1320400743
1412c16aa0
15b234ace
hex7919d14

126983444 has 12 divisors (see below), whose sum is σ = 253966944. Its totient is φ = 54421464.

The previous prime is 126983419. The next prime is 126983449. The reversal of 126983444 is 444389621.

126983444 is an admirable number.

It is a super-2 number, since 2×1269834442 = 32249590100202272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126983449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2267534 + ... + 2267589.

It is an arithmetic number, because the mean of its divisors is an integer number (21163912).

Almost surely, 2126983444 is an apocalyptic number.

126983444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

126983444 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

126983444 is a wasteful number, since it uses less digits than its factorization.

126983444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4535134 (or 4535132 counting only the distinct ones).

The product of its digits is 165888, while the sum is 41.

The square root of 126983444 is about 11268.6930919251. The cubic root of 126983444 is about 502.6307262831.

The spelling of 126983444 in words is "one hundred twenty-six million, nine hundred eighty-three thousand, four hundred forty-four".

Divisors: 1 2 4 7 14 28 4535123 9070246 18140492 31745861 63491722 126983444