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20352240294 = 239293651281
BaseRepresentation
bin10010111101000101…
…101000101010100110
31221112101022221002120
4102331011220222212
5313140133142134
613203311050410
71320230121351
oct227505505246
957471287076
1020352240294
1186a4344401
123b3bb10a06
131bc4666749
14db0db7298
157e1b48649
hex4bd168aa6

20352240294 has 16 divisors (see below), whose sum is σ = 40748307120. Its totient is φ = 6776775680.

The previous prime is 20352240289. The next prime is 20352240341. The reversal of 20352240294 is 49204225302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1820067 + ... + 1831214.

It is an arithmetic number, because the mean of its divisors is an integer number (2546769195).

Almost surely, 220352240294 is an apocalyptic number.

20352240294 is an abundant number, since it is smaller than the sum of its proper divisors (20396066826).

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

20352240294 is a wasteful number, since it uses less digits than its factorization.

20352240294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3652215.

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 20352240294 its reverse (49204225302), we get a palindrome (69556465596).

The spelling of 20352240294 in words is "twenty billion, three hundred fifty-two million, two hundred forty thousand, two hundred ninety-four".

Divisors: 1 2 3 6 929 1858 2787 5574 3651281 7302562 10953843 21907686 3392040049 6784080098 10176120147 20352240294