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20048502 = 23231311109
BaseRepresentation
bin100110001111…
…0101001110110
31101201120101010
41030132221312
520113023002
61553413050
7332260305
oct114365166
941646333
1020048502
1110353811
12686a186
1341cc526
14293c43c
151b6046c
hex131ea76

20048502 has 32 divisors (see below), whose sum is σ = 42197760. Its totient is φ = 6337760.

The previous prime is 20048489. The next prime is 20048503. The reversal of 20048502 is 20584002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20048503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17524 + ... + 18632.

It is an arithmetic number, because the mean of its divisors is an integer number (1318680).

Almost surely, 220048502 is an apocalyptic number.

20048502 is an abundant number, since it is smaller than the sum of its proper divisors (22149258).

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

20048502 is a wasteful number, since it uses less digits than its factorization.

20048502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 20048502 is about 4477.5553597918. Note that the first 3 decimals coincide. The cubic root of 20048502 is about 271.6610089947.

The spelling of 20048502 in words is "twenty million, forty-eight thousand, five hundred two".

Divisors: 1 2 3 6 23 46 69 131 138 262 393 786 1109 2218 3013 3327 6026 6654 9039 18078 25507 51014 76521 145279 153042 290558 435837 871674 3341417 6682834 10024251 20048502