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128426160 = 24351731477
BaseRepresentation
bin1111010011110…
…10000010110000
322221122201120110
413221322002300
5230334114120
620424341320
73116414202
oct751720260
9287581513
10128426160
1166547525
1237014840
13207b7315
14130b0772
15b41c2e0
hex7a7a0b0

128426160 has 80 divisors (see below), whose sum is σ = 421553376. Its totient is φ = 32231424.

The previous prime is 128426159. The next prime is 128426161. The reversal of 128426160 is 61624821.

It is an interprime number because it is at equal distance from previous prime (128426159) and next prime (128426161).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (128426161) 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 15 ways as a sum of consecutive naturals, for example, 11659 + ... + 19818.

Almost surely, 2128426160 is an apocalyptic number.

128426160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128426160 is an abundant number, since it is smaller than the sum of its proper divisors (293127216).

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

128426160 is a wasteful number, since it uses less digits than its factorization.

128426160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31510 (or 31504 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 128426160 is about 11332.5266379568. The cubic root of 128426160 is about 504.5271003498.

The spelling of 128426160 in words is "one hundred twenty-eight million, four hundred twenty-six thousand, one hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 17 20 24 30 34 40 48 51 60 68 80 85 102 120 136 170 204 240 255 272 340 408 510 680 816 1020 1360 2040 4080 31477 62954 94431 125908 157385 188862 251816 314770 377724 472155 503632 535109 629540 755448 944310 1070218 1259080 1510896 1605327 1888620 2140436 2518160 2675545 3210654 3777240 4280872 5351090 6421308 7554480 8026635 8561744 10702180 12842616 16053270 21404360 25685232 32106540 42808720 64213080 128426160