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128370046 = 2776112049
BaseRepresentation
bin1111010011011…
…00010101111110
322221112212121011
413221230111332
5230330320141
620423225434
73116061460
oct751542576
9287485534
10128370046
1166509352
1236ba827a
132079790c
1413098130
15b40a881
hex7a6c57e

128370046 has 16 divisors (see below), whose sum is σ = 220370400. Its totient is φ = 54938880.

The previous prime is 128370031. The next prime is 128370049. The reversal of 128370046 is 640073821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128370049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4630 + ... + 16678.

It is an arithmetic number, because the mean of its divisors is an integer number (13773150).

Almost surely, 2128370046 is an apocalyptic number.

128370046 is a deficient number, since it is larger than the sum of its proper divisors (92000354).

128370046 is a wasteful number, since it uses less digits than its factorization.

128370046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12819.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 128370046 is about 11330.0505735853. The cubic root of 128370046 is about 504.4536076438.

The spelling of 128370046 in words is "one hundred twenty-eight million, three hundred seventy thousand, forty-six".

Divisors: 1 2 7 14 761 1522 5327 10654 12049 24098 84343 168686 9169289 18338578 64185023 128370046