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202616420 = 22510130821
BaseRepresentation
bin11000001001110…
…10111001100100
3112010020222110212
430010322321210
5403332211140
632034434552
75010132266
oct1404727144
9463228425
10202616420
11a440a796
1257a32a58
1332c92196
141cca3b36
1512bc4765
hexc13ae64

202616420 has 12 divisors (see below), whose sum is σ = 425494524. Its totient is φ = 81046560.

The previous prime is 202616419. The next prime is 202616431. The reversal of 202616420 is 24616202.

It can be written as a sum of positive squares in 2 ways, for example, as 41783296 + 160833124 = 6464^2 + 12682^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5065391 + ... + 5065430.

It is an arithmetic number, because the mean of its divisors is an integer number (35457877).

Almost surely, 2202616420 is an apocalyptic number.

202616420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202616420 is an abundant number, since it is smaller than the sum of its proper divisors (222878104).

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

202616420 is a wasteful number, since it uses less digits than its factorization.

202616420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10130830 (or 10130828 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 202616420 is about 14234.3394648294. The cubic root of 202616420 is about 587.3426601447.

The spelling of 202616420 in words is "two hundred two million, six hundred sixteen thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 10130821 20261642 40523284 50654105 101308210 202616420