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202062421 = 1183221317
BaseRepresentation
bin11000000101100…
…11101001010101
3112002012211112101
430002303221111
5403211444141
632014522101
75002334161
oct1402635125
9462184471
10202062421
11a4071540
1257806331
1332b29c82
141cb9bca1
1512b15531
hexc0b3a55

202062421 has 8 divisors (see below), whose sum is σ = 223088544. Its totient is φ = 181479120.

The previous prime is 202062407. The next prime is 202062431. The reversal of 202062421 is 124260202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 202062421 - 211 = 202060373 is a prime.

It is a super-3 number, since 3×2020624213 (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202062431) 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 7 ways as a sum of consecutive naturals, for example, 109746 + ... + 111571.

It is an arithmetic number, because the mean of its divisors is an integer number (27886068).

Almost surely, 2202062421 is an apocalyptic number.

It is an amenable number.

202062421 is a deficient number, since it is larger than the sum of its proper divisors (21026123).

202062421 is a wasteful number, since it uses less digits than its factorization.

202062421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221411.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 202062421 is about 14214.8661970488. The cubic root of 202062421 is about 586.8068624070.

The spelling of 202062421 in words is "two hundred two million, sixty-two thousand, four hundred twenty-one".

Divisors: 1 11 83 913 221317 2434487 18369311 202062421