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1238450855848 = 2317193125979107
BaseRepresentation
bin10010000001011001011…
…011000101111110101000
311101101122202202222012121
4102001121123011332220
5130242321404341343
62344534135521024
7155321652404413
oct22013133057650
94341582688177
101238450855848
11438251249208
1218002a829174
138ca2972c30b
1443d2707cb7a
15223356bbaed
hex120596c5fa8

1238450855848 has 384 divisors, whose sum is σ = 2779764480000. Its totient is φ = 513764259840.

The previous prime is 1238450855843. The next prime is 1238450855869. The reversal of 1238450855848 is 8485580548321.

It is not an unprimeable number, because it can be changed into a prime (1238450855843) 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 95 ways as a sum of consecutive naturals, for example, 11574307011 + ... + 11574307117.

It is an arithmetic number, because the mean of its divisors is an integer number (7238970000).

Almost surely, 21238450855848 is an apocalyptic number.

It is an amenable number.

1238450855848 is an abundant number, since it is smaller than the sum of its proper divisors (1541313624152).

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

1238450855848 is a wasteful number, since it uses less digits than its factorization.

1238450855848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349 (or 314 counting only the distinct ones).

The product of its (nonzero) digits is 49152000, while the sum is 61.

The spelling of 1238450855848 in words is "one trillion, two hundred thirty-eight billion, four hundred fifty million, eight hundred fifty-five thousand, eight hundred forty-eight".