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203980980481 = 8914915382021
BaseRepresentation
bin1011110111111000110…
…1101100000100000001
3201111111210012110001221
42331332031230010001
511320223112333411
6233412500155041
720510560504045
oct2757615540401
9644453173057
10203980980481
1179564a44813
1233648998a81
131630a011825
149c30ac4025
15548cbde071
hex2f7e36c101

203980980481 has 8 divisors (see below), whose sum is σ = 207657297000. Its totient is φ = 200335428480.

The previous prime is 203980980473. The next prime is 203980980493. The reversal of 203980980481 is 184089089302.

203980980481 = 3193592 + 3193602.

203980980481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 21644294400 + 182336686081 = 147120^2 + 427009^2 .

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 203980980481 - 23 = 203980980473 is a prime.

It is a super-2 number, since 2×2039809804812 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203980980431) 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 7 ways as a sum of consecutive naturals, for example, 7677750 + ... + 7704271.

It is an arithmetic number, because the mean of its divisors is an integer number (25957162125).

Almost surely, 2203980980481 is an apocalyptic number.

203980980481 is the 319360-th centered square number.

It is an amenable number.

203980980481 is a deficient number, since it is larger than the sum of its proper divisors (3676316519).

203980980481 is a wasteful number, since it uses less digits than its factorization.

203980980481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15382259.

The product of its (nonzero) digits is 995328, while the sum is 52.

The spelling of 203980980481 in words is "two hundred three billion, nine hundred eighty million, nine hundred eighty thousand, four hundred eighty-one".

Divisors: 1 89 149 13261 15382021 1368999869 2291921129 203980980481