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20120608 = 252412609
BaseRepresentation
bin100110011000…
…0010000100000
31101212020021201
41030300100200
520122324413
61555130544
7333010444
oct114602040
941766251
1020120608
11103a2a02
1268a3a54
1342262b1
14295a824
151b769dd
hex1330420

20120608 has 24 divisors (see below), whose sum is σ = 39792060. Its totient is φ = 10014720.

The previous prime is 20120543. The next prime is 20120623. The reversal of 20120608 is 80602102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19820304 + 300304 = 4452^2 + 548^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6408 + ... + 9016.

Almost surely, 220120608 is an apocalyptic number.

It is an amenable number.

20120608 is a deficient number, since it is larger than the sum of its proper divisors (19671452).

20120608 is a wasteful number, since it uses less digits than its factorization.

20120608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2860 (or 2852 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 20120608 is about 4485.6000713394. The cubic root of 20120608 is about 271.9863026551.

The spelling of 20120608 in words is "twenty million, one hundred twenty thousand, six hundred eight".

Divisors: 1 2 4 8 16 32 241 482 964 1928 2609 3856 5218 7712 10436 20872 41744 83488 628769 1257538 2515076 5030152 10060304 20120608