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2021002112032 = 25420611501541
BaseRepresentation
bin11101011010001101000…
…111001110110000100000
321011012120010000200111021
4131122031013032300200
5231103003020041112
64144234025055224
7266004213340261
oct35321507166040
97135503020437
102021002112032
1170a114006472
12287825627514
1311876c7385b7
146db61cb2968
1537886be5907
hex1d68d1cec20

2021002112032 has 24 divisors (see below), whose sum is σ = 3978945155052. Its totient is φ = 1010476358400.

The previous prime is 2021002111991. The next prime is 2021002112033. The reversal of 2021002112032 is 2302112001202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1923979829776 + 97022282256 = 1387076^2 + 311484^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 2021002111997 and 2021002112015.

It is not an unprimeable number, because it can be changed into a prime (2021002112033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 595182 + ... + 2096722.

Almost surely, 22021002112032 is an apocalyptic number.

It is an amenable number.

2021002112032 is a deficient number, since it is larger than the sum of its proper divisors (1957943043020).

2021002112032 is a wasteful number, since it uses less digits than its factorization.

2021002112032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543612 (or 1543604 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 2021002112032 its reverse (2302112001202), we get a palindrome (4323114113234).

It can be divided in two parts, 202100 and 2112032, that added together give a palindrome (2314132).

The spelling of 2021002112032 in words is "two trillion, twenty-one billion, two million, one hundred twelve thousand, thirty-two".

Divisors: 1 2 4 8 16 32 42061 84122 168244 336488 672976 1345952 1501541 3003082 6006164 12012328 24024656 48049312 63156316001 126312632002 252625264004 505250528008 1010501056016 2021002112032