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20303104004 = 225558991309
BaseRepresentation
bin10010111010001010…
…001100100000000100
31221101221212112202222
4102322022030200010
5313040043312004
613154353551512
71316062352021
oct227212144004
957357775688
1020303104004
1186796335a7
123b27575598
131bb7421511
14da8666548
157dc68e7be
hex4ba28c804

20303104004 has 12 divisors (see below), whose sum is σ = 35531460300. Its totient is φ = 10151258208.

The previous prime is 20303103983. The next prime is 20303104033. The reversal of 20303104004 is 40040130302.

It can be written as a sum of positive squares in 2 ways, for example, as 166926400 + 20136177604 = 12920^2 + 141902^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176702 + ... + 268010.

It is an arithmetic number, because the mean of its divisors is an integer number (2960955025).

Almost surely, 220303104004 is an apocalyptic number.

It is an amenable number.

20303104004 is a deficient number, since it is larger than the sum of its proper divisors (15228356296).

20303104004 is a wasteful number, since it uses less digits than its factorization.

20303104004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146902 (or 146900 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20303104004 its reverse (40040130302), we get a palindrome (60343234306).

The spelling of 20303104004 in words is "twenty billion, three hundred three million, one hundred four thousand, four".

Divisors: 1 2 4 55589 91309 111178 182618 222356 365236 5075776001 10151552002 20303104004