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20403346306 = 272579356503
BaseRepresentation
bin10011000000001000…
…100101101110000010
31221122221111101100211
4103000020211232002
5313241224040211
613212334304334
71321420403440
oct230010455602
957587441324
1020403346306
118720180082
123b550580aa
131c0211b3a5
14db7abbb90
157e6390e21
hex4c0225b82

20403346306 has 16 divisors (see below), whose sum is σ = 34979140224. Its totient is φ = 8743797504.

The previous prime is 20403346279. The next prime is 20403346321. The reversal of 20403346306 is 60364330402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332851 + ... + 389353.

It is an arithmetic number, because the mean of its divisors is an integer number (2186196264).

Almost surely, 220403346306 is an apocalyptic number.

20403346306 is a deficient number, since it is larger than the sum of its proper divisors (14575793918).

20403346306 is a wasteful number, since it uses less digits than its factorization.

20403346306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82305.

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 20403346306 its reverse (60364330402), we get a palindrome (80767676708).

The spelling of 20403346306 in words is "twenty billion, four hundred three million, three hundred forty-six thousand, three hundred six".

Divisors: 1 2 7 14 25793 51586 56503 113006 180551 361102 395521 791042 1457381879 2914763758 10201673153 20403346306