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20396764 = 225099191
BaseRepresentation
bin100110111001…
…1101011011100
31102101021002201
41031303223130
520210144024
62005101244
7335240533
oct115635334
942337081
1020396764
1110571433
1269b7824
1342c1bbb
1429cd31a
151bcd744
hex1373adc

20396764 has 6 divisors (see below), whose sum is σ = 35694344. Its totient is φ = 10198380.

The previous prime is 20396741. The next prime is 20396767. The reversal of 20396764 is 46769302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20396767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2549592 + ... + 2549599.

Almost surely, 220396764 is an apocalyptic number.

It is an amenable number.

20396764 is a deficient number, since it is larger than the sum of its proper divisors (15297580).

20396764 is a wasteful number, since it uses less digits than its factorization.

20396764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5099195 (or 5099193 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 20396764 is about 4516.2776708258. The cubic root of 20396764 is about 273.2249930867.

The spelling of 20396764 in words is "twenty million, three hundred ninety-six thousand, seven hundred sixty-four".

Divisors: 1 2 4 5099191 10198382 20396764