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20302003332 = 22321343380349
BaseRepresentation
bin10010111010000101…
…111111110010000100
31221101212210121221100
4102322011333302010
5313034303101312
613154314220100
71316050116042
oct227205776204
957355717840
1020302003332
118678a51656
123b27124630
131bb7127530
14da845b392
157dc5235dc
hex4ba17fc84

20302003332 has 36 divisors (see below), whose sum is σ = 55266565900. Its totient is φ = 6246770112.

The previous prime is 20302003297. The next prime is 20302003357. The reversal of 20302003332 is 23330020302.

It can be written as a sum of positive squares in 2 ways, for example, as 6914587716 + 13387415616 = 83154^2 + 115704^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21689707 + ... + 21690642.

Almost surely, 220302003332 is an apocalyptic number.

It is an amenable number.

20302003332 is an abundant number, since it is smaller than the sum of its proper divisors (34964562568).

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

20302003332 is a wasteful number, since it uses less digits than its factorization.

20302003332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43380372 (or 43380367 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 18.

Adding to 20302003332 its reverse (23330020302), we get a palindrome (43632023634).

The spelling of 20302003332 in words is "twenty billion, three hundred two million, three thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 13 18 26 36 39 52 78 117 156 234 468 43380349 86760698 130141047 173521396 260282094 390423141 520564188 563944537 780846282 1127889074 1561692564 1691833611 2255778148 3383667222 5075500833 6767334444 10151001666 20302003332