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1242202353 = 3761969713
BaseRepresentation
bin100101000001010…
…1000000011110001
310012120102102021120
41022002220003301
510021000433403
6323132412453
742532355130
oct11202500361
93176372246
101242202353
11588211017
122a8017129
1316a47c5a2
14bad97917
15740c4e53
hex4a0a80f1

1242202353 has 16 divisors (see below), whose sum is σ = 1923912576. Its totient is φ = 698192640.

The previous prime is 1242202321. The next prime is 1242202397. The reversal of 1242202353 is 3532022421.

It is not a de Polignac number, because 1242202353 - 25 = 1242202321 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1242202253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 483576 + ... + 486137.

It is an arithmetic number, because the mean of its divisors is an integer number (120244536).

Almost surely, 21242202353 is an apocalyptic number.

It is an amenable number.

1242202353 is a deficient number, since it is larger than the sum of its proper divisors (681710223).

1242202353 is an equidigital number, since it uses as much as digits as its factorization.

1242202353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969784.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 1242202353 is about 35244.8911616989. The cubic root of 1242202353 is about 1074.9727349854.

Adding to 1242202353 its reverse (3532022421), we get a palindrome (4774224774).

The spelling of 1242202353 in words is "one billion, two hundred forty-two million, two hundred two thousand, three hundred fifty-three".

Divisors: 1 3 7 21 61 183 427 1281 969713 2909139 6787991 20363973 59152493 177457479 414067451 1242202353