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202420297 = 3111875501
BaseRepresentation
bin11000001000010…
…11000001001001
3112002220000110001
430010023001021
5403304422142
632030323001
75005354432
oct1404130111
9462800401
10202420297
11a4296402
1257959461
1332c23b31
141cc52489
1512b865b7
hexc10b049

202420297 has 8 divisors (see below), whose sum is σ = 209164032. Its totient is φ = 195690000.

The previous prime is 202420291. The next prime is 202420301. The reversal of 202420297 is 792024202.

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 202420297 - 23 = 202420289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202420291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34047 + ... + 39547.

It is an arithmetic number, because the mean of its divisors is an integer number (26145504).

Almost surely, 2202420297 is an apocalyptic number.

It is an amenable number.

202420297 is a deficient number, since it is larger than the sum of its proper divisors (6743735).

202420297 is a wasteful number, since it uses less digits than its factorization.

202420297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6719.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 202420297 is about 14227.4487171805. The cubic root of 202420297 is about 587.1530924366.

Adding to 202420297 its reverse (792024202), we get a palindrome (994444499).

The spelling of 202420297 in words is "two hundred two million, four hundred twenty thousand, two hundred ninety-seven".

Divisors: 1 31 1187 5501 36797 170531 6529687 202420297