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20612294 = 271379383
BaseRepresentation
bin100111010100…
…0010011000110
31102210012202022
41032220103012
520234043134
62013443142
7340126103
oct116502306
942705668
1020612294
11106a935a
126aa04b2
134369031
142a47aaa
151c2252e
hex13a84c6

20612294 has 16 divisors (see below), whose sum is σ = 31518720. Its totient is φ = 10107720.

The previous prime is 20612269. The next prime is 20612341. The reversal of 20612294 is 49221602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53627 + ... + 54009.

It is an arithmetic number, because the mean of its divisors is an integer number (1969920).

Almost surely, 220612294 is an apocalyptic number.

20612294 is a deficient number, since it is larger than the sum of its proper divisors (10906426).

20612294 is a wasteful number, since it uses less digits than its factorization.

20612294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 20612294 is about 4540.0764310747. The cubic root of 20612294 is about 274.1840009406.

Adding to 20612294 its reverse (49221602), we get a palindrome (69833896).

The spelling of 20612294 in words is "twenty million, six hundred twelve thousand, two hundred ninety-four".

Divisors: 1 2 71 142 379 383 758 766 26909 27193 53818 54386 145157 290314 10306147 20612294