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105152401465 = 521030480293
BaseRepresentation
bin110000111101110010…
…0100101000000111001
3101001102020210110022121
41201323210211000321
53210323003321330
6120150100521241
710411526444056
oct1417344450071
9331366713277
10105152401465
114065a875631
12184673b0221
139bba0cb2c7
14513747402d
152b0674717a
hex187b925039

105152401465 has 4 divisors (see below), whose sum is σ = 126182881764. Its totient is φ = 84121921168.

The previous prime is 105152401463. The next prime is 105152401493. The reversal of 105152401465 is 564104251501.

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 55656830889 + 49495570576 = 235917^2 + 222476^2 .

It is a cyclic number.

It is not a de Polignac number, because 105152401465 - 21 = 105152401463 is a prime.

It is a super-2 number, since 2×1051524014652 (a number of 23 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 105152401465.

It is not an unprimeable number, because it can be changed into a prime (105152401463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10515240142 + ... + 10515240151.

It is an arithmetic number, because the mean of its divisors is an integer number (31545720441).

Almost surely, 2105152401465 is an apocalyptic number.

It is an amenable number.

105152401465 is a deficient number, since it is larger than the sum of its proper divisors (21030480299).

105152401465 is an equidigital number, since it uses as much as digits as its factorization.

105152401465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21030480298.

The product of its (nonzero) digits is 24000, while the sum is 34.

Adding to 105152401465 its reverse (564104251501), we get a palindrome (669256652966).

The spelling of 105152401465 in words is "one hundred five billion, one hundred fifty-two million, four hundred one thousand, four hundred sixty-five".

Divisors: 1 5 21030480293 105152401465