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1282390708938 = 23213731784823
BaseRepresentation
bin10010101010010100011…
…100010101001011001010
311112121002000100210002220
4102222110130111023022
5132002314010141223
62421042215234510
7161435560113363
oct22522434251312
94477060323086
101282390708938
1145494a13a189
12188652078a36
1393c0cb044a1
14460d49c4b6a
1523557ee76e3
hex12a947152ca

1282390708938 has 8 divisors (see below), whose sum is σ = 2564781417888. Its totient is φ = 427463569644.

The previous prime is 1282390708901. The next prime is 1282390708957. The reversal of 1282390708938 is 8398070932821.

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

1282390708938 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106865892406 + ... + 106865892417.

It is an arithmetic number, because the mean of its divisors is an integer number (320597677236).

Almost surely, 21282390708938 is an apocalyptic number.

1282390708938 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1282390708938 is a wasteful number, since it uses less digits than its factorization.

1282390708938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213731784828.

The product of its (nonzero) digits is 10450944, while the sum is 60.

The spelling of 1282390708938 in words is "one trillion, two hundred eighty-two billion, three hundred ninety million, seven hundred eight thousand, nine hundred thirty-eight".

Divisors: 1 2 3 6 213731784823 427463569646 641195354469 1282390708938