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242873977969 = 747407731881
BaseRepresentation
bin1110001000110001101…
…0101100110001110001
3212012220022020102121101
43202030122230301301
512434401214243334
6303324052124401
723355433515220
oct3421432546161
9765808212541
10242873977969
1194003035447
123b0a2006701
1319b97930ccc
14ba8024ccb7
1564b740a214
hex388c6acc71

242873977969 has 8 divisors (see below), whose sum is σ = 277576494848. Its totient is φ = 208173019680.

The previous prime is 242873977961. The next prime is 242873977987. The reversal of 242873977969 is 969779378242.

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 242873977969 - 23 = 242873977961 is a prime.

It is a super-2 number, since 2×2428739779692 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242873977961) 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, 34092 + ... + 697789.

It is an arithmetic number, because the mean of its divisors is an integer number (34697061856).

Almost surely, 2242873977969 is an apocalyptic number.

It is an amenable number.

242873977969 is a deficient number, since it is larger than the sum of its proper divisors (34702516879).

242873977969 is an equidigital number, since it uses as much as digits as its factorization.

242873977969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779295.

The product of its digits is 576108288, while the sum is 73.

The spelling of 242873977969 in words is "two hundred forty-two billion, eight hundred seventy-three million, nine hundred seventy-seven thousand, nine hundred sixty-nine".

Divisors: 1 7 47407 331849 731881 5123167 34696282567 242873977969