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384748343421 = 31322743459657
BaseRepresentation
bin1011001100101001100…
…10011101000001111101
31100210002202212221101020
411212110302131001331
522300431033442141
6452430112134353
736540264646641
oct5462462350175
91323082787336
10384748343421
11139197456042
12626975373b9
132a38791c890
141489c790c21
15a01c974266
hex5994c9d07d

384748343421 has 16 divisors (see below), whose sum is σ = 554892913344. Its totient is φ = 235725174144.

The previous prime is 384748343411. The next prime is 384748343429. The reversal of 384748343421 is 124343847483.

It is not a de Polignac number, because 384748343421 - 229 = 384211472509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384748343429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21720976 + ... + 21738681.

It is an arithmetic number, because the mean of its divisors is an integer number (34680807084).

Almost surely, 2384748343421 is an apocalyptic number.

It is an amenable number.

384748343421 is a deficient number, since it is larger than the sum of its proper divisors (170144569923).

384748343421 is a wasteful number, since it uses less digits than its factorization.

384748343421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43459900.

The product of its digits is 6193152, while the sum is 51.

The spelling of 384748343421 in words is "three hundred eighty-four billion, seven hundred forty-eight million, three hundred forty-three thousand, four hundred twenty-one".

Divisors: 1 3 13 39 227 681 2951 8853 43459657 130378971 564975541 1694926623 9865342139 29596026417 128249447807 384748343421