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20627077 = 83257967
BaseRepresentation
bin100111010101…
…1111010000101
31102210222000211
41032223322011
520240031302
62014035421
7340220152
oct116537205
942728024
1020627077
1110709479
126aa8b71
134372993
142a4d229
151c26ad7
hex13abe85

20627077 has 8 divisors (see below), whose sum is σ = 20978496. Its totient is φ = 20278272.

The previous prime is 20627029. The next prime is 20627081. The reversal of 20627077 is 77072602.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20627077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20627777) 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, 20848 + ... + 21814.

It is an arithmetic number, because the mean of its divisors is an integer number (2622312).

Almost surely, 220627077 is an apocalyptic number.

It is an amenable number.

20627077 is a deficient number, since it is larger than the sum of its proper divisors (351419).

20627077 is an equidigital number, since it uses as much as digits as its factorization.

20627077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307.

The product of its (nonzero) digits is 8232, while the sum is 31.

The square root of 20627077 is about 4541.7041955636. The cubic root of 20627077 is about 274.2495329233.

Adding to 20627077 its reverse (77072602), we get a palindrome (97699679).

The spelling of 20627077 in words is "twenty million, six hundred twenty-seven thousand, seventy-seven".

Divisors: 1 83 257 967 21331 80261 248519 20627077