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1970031312 = 243213680773
BaseRepresentation
bin111010101101100…
…0100101011010000
312002021221221220200
41311123010223100
513013312000222
6523252335200
766550663344
oct16533045320
95067857820
101970031312
11921038757
1246b914500
132551b3702
141498d7624
15b7e42eac
hex756c4ad0

1970031312 has 30 divisors (see below), whose sum is σ = 5513351922. Its totient is φ = 656677056.

The previous prime is 1970031289. The next prime is 1970031319. The reversal of 1970031312 is 2131300791.

It can be written as a sum of positive squares in only one way, i.e., 1155728016 + 814303296 = 33996^2 + 28536^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1970031319) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6840243 + ... + 6840530.

Almost surely, 21970031312 is an apocalyptic number.

1970031312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1970031312 is an abundant number, since it is smaller than the sum of its proper divisors (3543320610).

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

1970031312 is a wasteful number, since it uses less digits than its factorization.

1970031312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13680787 (or 13680778 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 1970031312 is about 44385.0347752483. The cubic root of 1970031312 is about 1253.5963231384.

The spelling of 1970031312 in words is "one billion, nine hundred seventy million, thirty-one thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 13680773 27361546 41042319 54723092 82084638 109446184 123126957 164169276 218892368 246253914 328338552 492507828 656677104 985015656 1970031312