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971980134 = 231779120623
BaseRepresentation
bin111001111011110…
…011110101100110
32111201221201002020
4321323303311212
53442311331014
6240240524010
733041460216
oct7173636546
92451851066
10971980134
11459726074
12231620606
131264a9598
1493136246
155a4e91a9
hex39ef3d66

971980134 has 32 divisors (see below), whose sum is σ = 2084382720. Its totient is φ = 301072512.

The previous prime is 971980133. The next prime is 971980159. The reversal of 971980134 is 431089179.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (971980133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52254 + ... + 68369.

It is an arithmetic number, because the mean of its divisors is an integer number (65136960).

Almost surely, 2971980134 is an apocalyptic number.

971980134 is an abundant number, since it is smaller than the sum of its proper divisors (1112402586).

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

971980134 is a wasteful number, since it uses less digits than its factorization.

971980134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120724.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 971980134 is about 31176.5959334883. The cubic root of 971980134 is about 990.5714260538.

The spelling of 971980134 in words is "nine hundred seventy-one million, nine hundred eighty thousand, one hundred thirty-four".

Divisors: 1 2 3 6 17 34 51 79 102 158 237 474 1343 2686 4029 8058 120623 241246 361869 723738 2050591 4101182 6151773 9529217 12303546 19058434 28587651 57175302 161996689 323993378 485990067 971980134