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20514927 = 319359911
BaseRepresentation
bin100111001000…
…0100001101111
31102121021012010
41032100201233
520222434202
62011412303
7336242166
oct116204157
942537163
1020514927
1110642194
126a54093
134333914
142a203dd
151c0376c
hex139086f

20514927 has 8 divisors (see below), whose sum is σ = 28792960. Its totient is φ = 12956760.

The previous prime is 20514917. The next prime is 20514941. The reversal of 20514927 is 72941502.

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

It is not a de Polignac number, because 20514927 - 24 = 20514911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20514894 and 20514903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20514917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179899 + ... + 180012.

It is an arithmetic number, because the mean of its divisors is an integer number (3599120).

Almost surely, 220514927 is an apocalyptic number.

20514927 is a deficient number, since it is larger than the sum of its proper divisors (8278033).

20514927 is a wasteful number, since it uses less digits than its factorization.

20514927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359933.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 20514927 is about 4529.3406804964. The cubic root of 20514927 is about 273.7515952452.

The spelling of 20514927 in words is "twenty million, five hundred fourteen thousand, nine hundred twenty-seven".

Divisors: 1 3 19 57 359911 1079733 6838309 20514927