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1235994733009 = 312358632
BaseRepresentation
bin10001111111000111000…
…001101110100111010001
311101011022121011000002001
4101333013001232213101
5130222304122424014
62343450320354001
7155204046612421
oct21770701564721
94334277130061
101235994733009
11437200893823
1217b664175901
138c7279233aa
1443b72bb0481
152223ec5b974
hex11fc706e9d1

1235994733009 has 9 divisors (see below), whose sum is σ = 1277187298569. Its totient is φ = 1196090582580.

The previous prime is 1235994732997. The next prime is 1235994733013. The reversal of 1235994733009 is 9003374995321.

It is a happy number.

The square root of 1235994733009 is 1111753.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 1235994733009 - 223 = 1235986344401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1235994733069) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 34446412 + ... + 34482274.

It is an arithmetic number, because the mean of its divisors is an integer number (141909699841).

Almost surely, 21235994733009 is an apocalyptic number.

1235994733009 is the 1111753-rd square number.

1235994733009 is the 555877-th centered octagonal number.

It is an amenable number.

1235994733009 is a deficient number, since it is larger than the sum of its proper divisors (41192565560).

1235994733009 is an frugal number, since it uses more digits than its factorization.

1235994733009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71788 (or 35894 counting only the distinct ones).

The product of its (nonzero) digits is 5511240, while the sum is 55.

The spelling of 1235994733009 in words is "one trillion, two hundred thirty-five billion, nine hundred ninety-four million, seven hundred thirty-three thousand, nine".

Divisors: 1 31 961 35863 1111753 34464343 1286154769 39870797839 1235994733009