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128650242430 = 2540931454827
BaseRepresentation
bin111011111010000100…
…1101110100101111110
3110022001212010110022201
41313310021232211332
54101433430224210
6135033501102114
712203034006043
oct1676411564576
9408055113281
10128650242430
114a618787306
1220b2485793a
13c193367908
1463261151ca
15352e5e553a
hex1df426e97e

128650242430 has 16 divisors (see below), whose sum is σ = 232136630640. Its totient is φ = 51334276032.

The previous prime is 128650242421. The next prime is 128650242449. The reversal of 128650242430 is 34242056821.

It is a self number, because there is not a number n which added to its sum of digits gives 128650242430.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15723324 + ... + 15731503.

It is an arithmetic number, because the mean of its divisors is an integer number (14508539415).

Almost surely, 2128650242430 is an apocalyptic number.

128650242430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128650242430 is a deficient number, since it is larger than the sum of its proper divisors (103486388210).

128650242430 is a wasteful number, since it uses less digits than its factorization.

128650242430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31455243.

The product of its (nonzero) digits is 92160, while the sum is 37.

The spelling of 128650242430 in words is "one hundred twenty-eight billion, six hundred fifty million, two hundred forty-two thousand, four hundred thirty".

Divisors: 1 2 5 10 409 818 2045 4090 31454827 62909654 157274135 314548270 12865024243 25730048486 64325121215 128650242430