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428068158 = 23710192099
BaseRepresentation
bin11001100000111…
…100110100111110
31002211111010010020
4121200330310332
51334041140113
6110250553010
713415343060
oct3140746476
91084433106
10428068158
111aa6a6a41
12bb438766
136a8bb18b
1440bcd730
15278aa023
hex1983cd3e

428068158 has 16 divisors (see below), whose sum is σ = 978441600. Its totient is φ = 122305176.

The previous prime is 428068141. The next prime is 428068163. The reversal of 428068158 is 851860824.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 10192099 = 428068158 / (4 + 2 + 8 + 0 + 6 + 8 + 1 + 5 + 8).

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, 5096008 + ... + 5096091.

It is an arithmetic number, because the mean of its divisors is an integer number (61152600).

Almost surely, 2428068158 is an apocalyptic number.

428068158 is an abundant number, since it is smaller than the sum of its proper divisors (550373442).

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

428068158 is a wasteful number, since it uses less digits than its factorization.

428068158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10192111.

The product of its (nonzero) digits is 122880, while the sum is 42.

The square root of 428068158 is about 20689.8080706419. The cubic root of 428068158 is about 753.6522058768.

The spelling of 428068158 in words is "four hundred twenty-eight million, sixty-eight thousand, one hundred fifty-eight".

Divisors: 1 2 3 6 7 14 21 42 10192099 20384198 30576297 61152594 71344693 142689386 214034079 428068158