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842141970 = 232531301843
BaseRepresentation
bin110010001100100…
…001000100010010
32011200122020121100
4302030201010102
53211042020340
6215322005230
726604042255
oct6214410422
92150566540
10842141970
113a24047aa
121b6046816
13105619677
147dbb909c
154dded830
hex32321112

842141970 has 48 divisors (see below), whose sum is σ = 2260207872. Its totient is φ = 217326240.

The previous prime is 842141947. The next prime is 842141977. The reversal of 842141970 is 79141248.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (842141977) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 148132 + ... + 153711.

It is an arithmetic number, because the mean of its divisors is an integer number (47087664).

Almost surely, 2842141970 is an apocalyptic number.

842141970 is an abundant number, since it is smaller than the sum of its proper divisors (1418065902).

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

842141970 is a wasteful number, since it uses less digits than its factorization.

842141970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301887 (or 301884 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 842141970 is about 29019.6824586349. The cubic root of 842141970 is about 944.3401120837.

The spelling of 842141970 in words is "eight hundred forty-two million, one hundred forty-one thousand, nine hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 30 31 45 62 90 93 155 186 279 310 465 558 930 1395 2790 301843 603686 905529 1509215 1811058 2716587 3018430 4527645 5433174 9055290 9357133 13582935 18714266 27165870 28071399 46785665 56142798 84214197 93571330 140356995 168428394 280713990 421070985 842141970