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252382699237 = 1997126380921
BaseRepresentation
bin1110101100001100101…
…1100101111011100101
3220010102222120112000011
43223003023211323211
513113334432333422
6311535405050221
724143164355524
oct3530313457345
9803388515004
10252382699237
11980424aa479
1240ab6556971
131aa518cabb6
14c30304a4bb
1568720c4077
hex3ac32e5ee5

252382699237 has 4 divisors (see below), whose sum is σ = 252509082156. Its totient is φ = 252256316320.

The previous prime is 252382699229. The next prime is 252382699243. The reversal of 252382699237 is 732996283252.

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 137966930721 + 114415768516 = 371439^2 + 338254^2 .

It is a cyclic number.

It is not a de Polignac number, because 252382699237 - 23 = 252382699229 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252382699267) 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, 63188464 + ... + 63192457.

It is an arithmetic number, because the mean of its divisors is an integer number (63127270539).

Almost surely, 2252382699237 is an apocalyptic number.

It is an amenable number.

252382699237 is a deficient number, since it is larger than the sum of its proper divisors (126382919).

252382699237 is a wasteful number, since it uses less digits than its factorization.

252382699237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126382918.

The product of its digits is 19595520, while the sum is 58.

The spelling of 252382699237 in words is "two hundred fifty-two billion, three hundred eighty-two million, six hundred ninety-nine thousand, two hundred thirty-seven".

Divisors: 1 1997 126380921 252382699237