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20152119 = 313516721
BaseRepresentation
bin100110011011…
…1111100110111
31101220211111210
41030313330313
520124331434
61555532503
7333201351
oct114677467
941824453
1020152119
1110414649
1268ba133
134237740
1429680d1
151b80ee9
hex1337f37

20152119 has 8 divisors (see below), whose sum is σ = 28936432. Its totient is φ = 12401280.

The previous prime is 20152073. The next prime is 20152127. The reversal of 20152119 is 91125102.

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

It is not a de Polignac number, because 20152119 - 27 = 20151991 is a prime.

It is a super-2 number, since 2×201521192 = 812215800380322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20152095 and 20152104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20152159) 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, 258322 + ... + 258399.

It is an arithmetic number, because the mean of its divisors is an integer number (3617054).

Almost surely, 220152119 is an apocalyptic number.

20152119 is a deficient number, since it is larger than the sum of its proper divisors (8784313).

20152119 is a wasteful number, since it uses less digits than its factorization.

20152119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516737.

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 20152119 is about 4489.1111592385. Note that the first 4 decimals coincide. The cubic root of 20152119 is about 272.1282150356.

The spelling of 20152119 in words is "twenty million, one hundred fifty-two thousand, one hundred nineteen".

Divisors: 1 3 13 39 516721 1550163 6717373 20152119