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20150412415 = 57575726069
BaseRepresentation
bin10010110001000011…
…101110010001111111
31221000022120000021221
4102301003232101333
5312232001144130
613131301134211
71312226452030
oct226103562177
957008500257
1020150412415
118600423101
123aa43ba367
131b918bc473
14d9227aa87
157ce07c87a
hex4b10ee47f

20150412415 has 8 divisors (see below), whose sum is σ = 27634851360. Its totient is φ = 13817425632.

The previous prime is 20150412389. The next prime is 20150412427. The reversal of 20150412415 is 51421405102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20150412415 - 213 = 20150404223 is a prime.

It is a super-2 number, since 2×201504124152 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20150412415.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 287863000 + ... + 287863069.

It is an arithmetic number, because the mean of its divisors is an integer number (3454356420).

Almost surely, 220150412415 is an apocalyptic number.

20150412415 is a deficient number, since it is larger than the sum of its proper divisors (7484438945).

20150412415 is an equidigital number, since it uses as much as digits as its factorization.

20150412415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575726081.

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 20150412415 its reverse (51421405102), we get a palindrome (71571817517).

The spelling of 20150412415 in words is "twenty billion, one hundred fifty million, four hundred twelve thousand, four hundred fifteen".

Divisors: 1 5 7 35 575726069 2878630345 4030082483 20150412415