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126974128 = 2471111773
BaseRepresentation
bin1111001000101…
…11100010110000
322211220221202111
413210113202300
5230001133003
620333255104
73101155651
oct744274260
9284827674
10126974128
11657455a6
1236634494
13203c9428
1412c13528
15b231e6d
hex79178b0

126974128 has 20 divisors (see below), whose sum is σ = 249479568. Its totient is φ = 62592320.

The previous prime is 126974087. The next prime is 126974149. The reversal of 126974128 is 821479621.

It is a super-2 number, since 2×1269741282 = 32244858362720768, which contains 22 as substring.

It is an unprimeable number.

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, 54751 + ... + 57022.

Almost surely, 2126974128 is an apocalyptic number.

It is an amenable number.

126974128 is a deficient number, since it is larger than the sum of its proper divisors (122505440).

126974128 is a wasteful number, since it uses less digits than its factorization.

126974128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111852 (or 111846 counting only the distinct ones).

The product of its digits is 48384, while the sum is 40.

The square root of 126974128 is about 11268.2797267374. The cubic root of 126974128 is about 502.6184343333.

The spelling of 126974128 in words is "one hundred twenty-six million, nine hundred seventy-four thousand, one hundred twenty-eight".

Divisors: 1 2 4 8 16 71 142 284 568 1136 111773 223546 447092 894184 1788368 7935883 15871766 31743532 63487064 126974128