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242996781765 = 3516199785451
BaseRepresentation
bin1110001001001110111…
…1001010001011000101
3212020012212022111202010
43202103233022023011
512440124134004030
6303344200204433
723361454364613
oct3422357121305
9766185274663
10242996781765
1194066391791
123b117169719
1319bb71ca18a
14ba926986b3
1564c30b66b0
hex3893bca2c5

242996781765 has 8 divisors (see below), whose sum is σ = 388794850848. Its totient is φ = 129598283600.

The previous prime is 242996781733. The next prime is 242996781799. The reversal of 242996781765 is 567187699242.

It is a happy number.

242996781765 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 242996781765 - 25 = 242996781733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 242996781696 and 242996781705.

It is a congruent number.

It is an unprimeable number.

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, 8099892711 + ... + 8099892740.

It is an arithmetic number, because the mean of its divisors is an integer number (48599356356).

Almost surely, 2242996781765 is an apocalyptic number.

It is an amenable number.

242996781765 is a deficient number, since it is larger than the sum of its proper divisors (145798069083).

242996781765 is a wasteful number, since it uses less digits than its factorization.

242996781765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16199785459.

The product of its digits is 91445760, while the sum is 66.

The spelling of 242996781765 in words is "two hundred forty-two billion, nine hundred ninety-six million, seven hundred eighty-one thousand, seven hundred sixty-five".

Divisors: 1 3 5 15 16199785451 48599356353 80998927255 242996781765