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3438137928 = 2334317471907
BaseRepresentation
bin1100110011101101…
…1101001001001000
322212121110111120210
43030323131021020
524020130403203
61325055121120
7151125455511
oct31473351110
98777414523
103438137928
111504814a05
127bb5131a0
1342a3b9c54
14248897a08
15151c8c803
hexccedd248

3438137928 has 64 divisors (see below), whose sum is σ = 8804885760. Its totient is φ = 1118166336.

The previous prime is 3438137921. The next prime is 3438137929. The reversal of 3438137928 is 8297318343.

3438137928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (3438137921) 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, 1801951 + ... + 1803857.

It is an arithmetic number, because the mean of its divisors is an integer number (137576340).

Almost surely, 23438137928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3438137928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4402442880).

3438137928 is an abundant number, since it is smaller than the sum of its proper divisors (5366747832).

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

3438137928 is a wasteful number, since it uses less digits than its factorization.

3438137928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3706 (or 3702 counting only the distinct ones).

The product of its digits is 870912, while the sum is 48.

The square root of 3438137928 is about 58635.6370136797. The cubic root of 3438137928 is about 1509.2960372273.

The spelling of 3438137928 in words is "three billion, four hundred thirty-eight million, one hundred thirty-seven thousand, nine hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 24 43 86 129 172 258 344 516 1032 1747 1907 3494 3814 5241 5721 6988 7628 10482 11442 13976 15256 20964 22884 41928 45768 75121 82001 150242 164002 225363 246003 300484 328004 450726 492006 600968 656008 901452 984012 1802904 1968024 3331529 6663058 9994587 13326116 19989174 26652232 39978348 79956696 143255747 286511494 429767241 573022988 859534482 1146045976 1719068964 3438137928