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20383638302 = 279129010369
BaseRepresentation
bin10010111110111101…
…011010001100011110
31221121120102010001202
4102332331122030132
5313221202411202
613210352035502
71321061031626
oct227675321436
957546363052
1020383638302
11871003a175
123b4a532b92
131bcb00ab51
14db522b886
157e479b802
hex4bef5a31e

20383638302 has 8 divisors (see below), whose sum is σ = 30962488800. Its totient is φ = 10062808704.

The previous prime is 20383638281. The next prime is 20383638313.

It is a happy number.

20383638302 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×203836383022 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 64505027 + ... + 64505342.

It is an arithmetic number, because the mean of its divisors is an integer number (3870311100).

Almost surely, 220383638302 is an apocalyptic number.

20383638302 is a deficient number, since it is larger than the sum of its proper divisors (10578850498).

20383638302 is a wasteful number, since it uses less digits than its factorization.

20383638302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129010450.

The product of its (nonzero) digits is 124416, while the sum is 38.

The spelling of 20383638302 in words is "twenty billion, three hundred eighty-three million, six hundred thirty-eight thousand, three hundred two".

Divisors: 1 2 79 158 129010369 258020738 10191819151 20383638302