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202988988 = 223211235021
BaseRepresentation
bin11000001100101…
…01110110111100
3112010221220112200
430012111312330
5403431121423
632050431500
75013243426
oct1406256674
9463856480
10202988988
11a46446a4
1257b92590
1333092937
141cd5d816
1512c49d43
hexc195dbc

202988988 has 36 divisors (see below), whose sum is σ = 513670248. Its totient is φ = 67589280.

The previous prime is 202988987. The next prime is 202989013. The reversal of 202988988 is 889889202.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202988987) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37918 + ... + 42938.

It is an arithmetic number, because the mean of its divisors is an integer number (14268618).

Almost surely, 2202988988 is an apocalyptic number.

It is an amenable number.

202988988 is an abundant number, since it is smaller than the sum of its proper divisors (310681260).

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

202988988 is a wasteful number, since it uses less digits than its factorization.

202988988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6154 (or 6149 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 54.

The square root of 202988988 is about 14247.4203980931. The cubic root of 202988988 is about 587.7024386414.

The spelling of 202988988 in words is "two hundred two million, nine hundred eighty-eight thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 1123 2246 3369 4492 5021 6738 10042 10107 13476 15063 20084 20214 30126 40428 45189 60252 90378 180756 5638583 11277166 16915749 22554332 33831498 50747247 67662996 101494494 202988988