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20172310419 = 329231865637
BaseRepresentation
bin10010110010010111…
…010000011110010011
31221001211202112201010
4102302113100132103
5312303102413134
613133402342003
71312613544432
oct226227203623
957054675633
1020172310419
11861181a428
123aab7ba903
131b962b8771
14d9513b119
157d0e55ce9
hex4b25d0793

20172310419 has 8 divisors (see below), whose sum is σ = 27823876560. Its totient is φ = 12984475616.

The previous prime is 20172310363. The next prime is 20172310427. The reversal of 20172310419 is 91401327102.

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 20172310419 - 211 = 20172308371 is a prime.

It is a super-2 number, since 2×201723104192 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20172310429) 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 7 ways as a sum of consecutive naturals, for example, 115932732 + ... + 115932905.

It is an arithmetic number, because the mean of its divisors is an integer number (3477984570).

Almost surely, 220172310419 is an apocalyptic number.

20172310419 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

20172310419 is a deficient number, since it is larger than the sum of its proper divisors (7651566141).

20172310419 is a wasteful number, since it uses less digits than its factorization.

20172310419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231865669.

The product of its (nonzero) digits is 3024, while the sum is 30.

The spelling of 20172310419 in words is "twenty billion, one hundred seventy-two million, three hundred ten thousand, four hundred nineteen".

Divisors: 1 3 29 87 231865637 695596911 6724103473 20172310419