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32131466402197 = 109294784095433
BaseRepresentation
bin1110100111001001100001…
…01001000001100110010101
311012202201221010202210201111
413103210300221001212111
513202420220344332242
6152200554125255021
76524264456024551
oct723446051014625
9135681833683644
1032131466402197
11a268973133708
12372b363104471
1314c0ca4605946
147d1257d80861
153aac2e729817
hex1d3930a41995

32131466402197 has 4 divisors (see below), whose sum is σ = 32426250497740. Its totient is φ = 31836682306656.

The previous prime is 32131466402129. The next prime is 32131466402209. The reversal of 32131466402197 is 79120466413123.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20200701041361 + 11930765360836 = 4494519^2 + 3454094^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-32131466402197 is a prime.

It is a super-2 number, since 2×321314664021972 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 32131466402197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32131466402897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147392047608 + ... + 147392047825.

It is an arithmetic number, because the mean of its divisors is an integer number (8106562624435).

Almost surely, 232131466402197 is an apocalyptic number.

It is an amenable number.

32131466402197 is a deficient number, since it is larger than the sum of its proper divisors (294784095543).

32131466402197 is a wasteful number, since it uses less digits than its factorization.

32131466402197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294784095542.

The product of its (nonzero) digits is 1306368, while the sum is 49.

The spelling of 32131466402197 in words is "thirty-two trillion, one hundred thirty-one billion, four hundred sixty-six million, four hundred two thousand, one hundred ninety-seven".

Divisors: 1 109 294784095433 32131466402197