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202084020 = 223254723887
BaseRepresentation
bin11000000101110…
…00111010110100
3112002020221011100
430002320322310
5403213142040
632015210100
75002454145
oct1402707264
9462227140
10202084020
11a4086796
1257816930
1332b36a58
141cba5acc
1512b1bb30
hexc0b8eb4

202084020 has 72 divisors (see below), whose sum is σ = 626056704. Its totient is φ = 52740288.

The previous prime is 202083997. The next prime is 202084021. The reversal of 202084020 is 20480202.

It is a super-2 number, since 2×2020840202 = 81675902278720800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 202083984 and 202084002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202084021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3484 + ... + 20403.

It is an arithmetic number, because the mean of its divisors is an integer number (8695232).

Almost surely, 2202084020 is an apocalyptic number.

202084020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202084020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313028352).

202084020 is an abundant number, since it is smaller than the sum of its proper divisors (423972684).

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

202084020 is a wasteful number, since it uses less digits than its factorization.

202084020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23949 (or 23944 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 202084020 is about 14215.6259095405. The cubic root of 202084020 is about 586.8277701209.

The spelling of 202084020 in words is "two hundred two million, eighty-four thousand, twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 47 60 90 94 141 180 188 235 282 423 470 564 705 846 940 1410 1692 2115 2820 4230 8460 23887 47774 71661 95548 119435 143322 214983 238870 286644 358305 429966 477740 716610 859932 1074915 1122689 1433220 2149830 2245378 3368067 4299660 4490756 5613445 6736134 10104201 11226890 13472268 16840335 20208402 22453780 33680670 40416804 50521005 67361340 101042010 202084020