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128041500605 = 5178071438103
BaseRepresentation
bin111011100111111011…
…1100011111110111101
3110020111102200011112012
41313033313203332331
54044212111004410
6134453233421005
712151662540404
oct1671767437675
9406442604465
10128041500605
114a3360a8597
1220994a0a765
13c0c71cb055
1462a933463b
1534e5e4c605
hex1dcfde3fbd

128041500605 has 8 divisors (see below), whose sum is σ = 153658536192. Its totient is φ = 102427376848.

The previous prime is 128041500581. The next prime is 128041500619. The reversal of 128041500605 is 506005140821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128041500605 - 212 = 128041496509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 630017 + ... + 808086.

It is an arithmetic number, because the mean of its divisors is an integer number (19207317024).

Almost surely, 2128041500605 is an apocalyptic number.

It is an amenable number.

128041500605 is a deficient number, since it is larger than the sum of its proper divisors (25617035587).

128041500605 is a wasteful number, since it uses less digits than its factorization.

128041500605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455915.

The product of its (nonzero) digits is 9600, while the sum is 32.

The spelling of 128041500605 in words is "one hundred twenty-eight billion, forty-one million, five hundred thousand, six hundred five".

Divisors: 1 5 17807 89035 1438103 7190515 25608300121 128041500605