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20464060 = 2251023203
BaseRepresentation
bin100111000010…
…0000110111100
31102111200102011
41032010012330
520214322220
62010341004
7335640661
oct116040674
942450364
1020464060
1110607a51
126a2a764
134316716
142a09a68
151be365a
hex13841bc

20464060 has 12 divisors (see below), whose sum is σ = 42974568. Its totient is φ = 8185616.

The previous prime is 20464057. The next prime is 20464063. The reversal of 20464060 is 6046402.

It is an interprime number because it is at equal distance from previous prime (20464057) and next prime (20464063).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20464063) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 511582 + ... + 511621.

It is an arithmetic number, because the mean of its divisors is an integer number (3581214).

Almost surely, 220464060 is an apocalyptic number.

20464060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20464060 is an abundant number, since it is smaller than the sum of its proper divisors (22510508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20464060 is a wasteful number, since it uses less digits than its factorization.

20464060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023212 (or 1023210 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 20464060 is about 4523.7219189513. The cubic root of 20464060 is about 273.5251512307.

The spelling of 20464060 in words is "twenty million, four hundred sixty-four thousand, sixty".

Divisors: 1 2 4 5 10 20 1023203 2046406 4092812 5116015 10232030 20464060