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30112302021 = 344089227663
BaseRepresentation
bin11100000010110101…
…010100001111000101
32212201120121102210020
4130002311110033011
5443132222131041
621500003045353
72114132225664
oct340265241705
985646542706
1030112302021
111185267821a
125a04670859
132abb7251b9
14165931cddb
15bb390d866
hex702d543c5

30112302021 has 8 divisors (see below), whose sum is σ = 40150823040. Its totient is φ = 20074324512.

The previous prime is 30112302007. The next prime is 30112302053. The reversal of 30112302021 is 12020321103.

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

It is not a de Polignac number, because 30112302021 - 26 = 30112301957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30112302071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18436 + ... + 246098.

It is an arithmetic number, because the mean of its divisors is an integer number (5018852880).

Almost surely, 230112302021 is an apocalyptic number.

It is an amenable number.

30112302021 is a deficient number, since it is larger than the sum of its proper divisors (10038521019).

30112302021 is a wasteful number, since it uses less digits than its factorization.

30112302021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271755.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 30112302021 its reverse (12020321103), we get a palindrome (42132623124).

It can be divided in two parts, 3011 and 2302021, that added together give a palindrome (2305032).

The spelling of 30112302021 in words is "thirty billion, one hundred twelve million, three hundred two thousand, twenty-one".

Divisors: 1 3 44089 132267 227663 682989 10037434007 30112302021