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30001321133021 = 728979147896857
BaseRepresentation
bin1101101001001001110100…
…00101101100001111011101
310221020002122122122021021202
412310210322011230033131
512413020201202224041
6143450225555405245
76214344464005040
oct664447205541735
9127202578567252
1030001321133021
119617541712927
1234465598b3825
131398160066274
1475a100a0cc57
1537060ac90a9b
hex1b493a16c3dd

30001321133021 has 8 divisors (see below), whose sum is σ = 34288407558720. Its totient is φ = 25714530559008.

The previous prime is 30001321132997. The next prime is 30001321133023. The reversal of 30001321133021 is 12033112310003.

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

It is a cyclic number.

It is not a de Polignac number, because 30001321133021 - 26 = 30001321132957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30001321132984 and 30001321133002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30001321133023) 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, 73745576 + ... + 74151281.

It is an arithmetic number, because the mean of its divisors is an integer number (4286050944840).

Almost surely, 230001321133021 is an apocalyptic number.

It is an amenable number.

30001321133021 is a deficient number, since it is larger than the sum of its proper divisors (4287086425699).

30001321133021 is a wasteful number, since it uses less digits than its factorization.

30001321133021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147925843.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 30001321133021 its reverse (12033112310003), we get a palindrome (42034433443024).

The spelling of 30001321133021 in words is "thirty trillion, one billion, three hundred twenty-one million, one hundred thirty-three thousand, twenty-one".

Divisors: 1 7 28979 202853 147896857 1035277999 4285903019003 30001321133021