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126078040 = 23511286541
BaseRepresentation
bin1111000001111…
…00110001011000
322210020102120001
413200330301120
5224233444130
620302142344
73060434314
oct740746130
9283212501
10126078040
1165193330
12362819b4
13201745ba
1412a5cb44
15b1066ca
hex783cc58

126078040 has 32 divisors (see below), whose sum is σ = 309465360. Its totient is φ = 45846400.

The previous prime is 126078031. The next prime is 126078047. The reversal of 126078040 is 40870621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126078047) 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 7 ways as a sum of consecutive naturals, for example, 142831 + ... + 143710.

Almost surely, 2126078040 is an apocalyptic number.

126078040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126078040 is an abundant number, since it is smaller than the sum of its proper divisors (183387320).

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

126078040 is a wasteful number, since it uses less digits than its factorization.

126078040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286563 (or 286559 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 126078040 is about 11228.4478001191. The cubic root of 126078040 is about 501.4332741911.

The spelling of 126078040 in words is "one hundred twenty-six million, seventy-eight thousand, forty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 440 286541 573082 1146164 1432705 2292328 2865410 3151951 5730820 6303902 11461640 12607804 15759755 25215608 31519510 63039020 126078040