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2020909388 = 2219181114683
BaseRepresentation
bin111100001110100…
…1010000101001100
312012211200211111212
41320131022011030
513114323100023
6532311033552
7101036306051
oct17035120514
95184624455
102020909388
11947829153
1248496b8b8
132628b8694
1415257d028
15bc642e78
hex7874a14c

2020909388 has 24 divisors (see below), whose sum is σ = 3725037120. Its totient is φ = 956679120.

The previous prime is 2020909381. The next prime is 2020909403. The reversal of 2020909388 is 8839090202.

It is not an unprimeable number, because it can be changed into a prime (2020909381) 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, 130295 + ... + 144977.

It is an arithmetic number, because the mean of its divisors is an integer number (155209880).

Almost surely, 22020909388 is an apocalyptic number.

It is an amenable number.

2020909388 is a deficient number, since it is larger than the sum of its proper divisors (1704127732).

2020909388 is a wasteful number, since it uses less digits than its factorization.

2020909388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16517 (or 16515 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 2020909388 is about 44954.5257788357. The cubic root of 2020909388 is about 1264.2965333696.

The spelling of 2020909388 in words is "two billion, twenty million, nine hundred nine thousand, three hundred eighty-eight".

Divisors: 1 2 4 19 38 76 1811 3622 7244 14683 29366 34409 58732 68818 137636 278977 557954 1115908 26590913 53181826 106363652 505227347 1010454694 2020909388