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1980413747061 = 32922763376403
BaseRepresentation
bin11100110100011001110…
…110111001111101110101
321000022210102212002222120
4130310121312321331311
5224421341404401221
64113442311350153
7263036333046561
oct34643166717565
97008712762876
101980413747061
116a3985a27092
1227b998682359
131149a18022a9
146bbd150a6a1
15367ad73d5c6
hex1cd19db9f75

1980413747061 has 8 divisors (see below), whose sum is σ = 2731605168480. Its totient is φ = 1274749078512.

The previous prime is 1980413747027. The next prime is 1980413747087. The reversal of 1980413747061 is 1607473140891.

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

It is not a de Polignac number, because 1980413747061 - 213 = 1980413738869 is a prime.

It is a super-2 number, since 2×19804137470612 (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1980413746995 and 1980413747013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1980418747061) 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, 11381688115 + ... + 11381688288.

It is an arithmetic number, because the mean of its divisors is an integer number (341450646060).

Almost surely, 21980413747061 is an apocalyptic number.

It is an amenable number.

1980413747061 is a deficient number, since it is larger than the sum of its proper divisors (751191421419).

1980413747061 is a wasteful number, since it uses less digits than its factorization.

1980413747061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22763376435.

The product of its (nonzero) digits is 1016064, while the sum is 51.

The spelling of 1980413747061 in words is "one trillion, nine hundred eighty billion, four hundred thirteen million, seven hundred forty-seven thousand, sixty-one".

Divisors: 1 3 29 87 22763376403 68290129209 660137915687 1980413747061