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252120141541 = 1606315695707
BaseRepresentation
bin1110101011001110001…
…0000000111011100101
3220002202200112012120001
43222303202000323211
513112320224012131
6311453345341301
724133525562302
oct3526342007345
9802680465501
10252120141541
1197a18279a44
1240a42637831
131aa0c3ac708
14c2ba2220a9
15685900e261
hex3ab3880ee5

252120141541 has 4 divisors (see below), whose sum is σ = 252135853312. Its totient is φ = 252104429772.

The previous prime is 252120141499. The next prime is 252120141577. The reversal of 252120141541 is 145141021252.

252120141541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 252120141541 - 223 = 252111752933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252123141541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7831791 + ... + 7863916.

It is an arithmetic number, because the mean of its divisors is an integer number (63033963328).

Almost surely, 2252120141541 is an apocalyptic number.

It is an amenable number.

252120141541 is a deficient number, since it is larger than the sum of its proper divisors (15711771).

252120141541 is a wasteful number, since it uses less digits than its factorization.

252120141541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15711770.

The product of its (nonzero) digits is 3200, while the sum is 28.

Adding to 252120141541 its reverse (145141021252), we get a palindrome (397261162793).

The spelling of 252120141541 in words is "two hundred fifty-two billion, one hundred twenty million, one hundred forty-one thousand, five hundred forty-one".

Divisors: 1 16063 15695707 252120141541