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28373237382 = 2373156338707
BaseRepresentation
bin11010011011001011…
…010011111010000110
32201020101020210120210
4122123023103322012
5431102022044012
621011240540250
72023054352460
oct323313237206
981211223523
1028373237382
111103aa53216
1255ba181686
1328a234ba79
141532389130
15b10de023c
hex69b2d3e86

28373237382 has 64 divisors (see below), whose sum is σ = 67065790464. Its totient is φ = 7830997920.

The previous prime is 28373237357. The next prime is 28373237423.

28373237382 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 713673 + ... + 752379.

It is an arithmetic number, because the mean of its divisors is an integer number (1047902976).

Almost surely, 228373237382 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28373237382, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33532895232).

28373237382 is an abundant number, since it is smaller than the sum of its proper divisors (38692553082).

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

28373237382 is a wasteful number, since it uses less digits than its factorization.

28373237382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39313.

The product of its digits is 2032128, while the sum is 48.

The spelling of 28373237382 in words is "twenty-eight billion, three hundred seventy-three million, two hundred thirty-seven thousand, three hundred eighty-two".

Divisors: 1 2 3 6 7 14 21 31 42 62 93 186 217 434 563 651 1126 1302 1689 3378 3941 7882 11823 17453 23646 34906 38707 52359 77414 104718 116121 122171 232242 244342 270949 366513 541898 733026 812847 1199917 1625694 2399834 3599751 7199502 8399419 16798838 21792041 25198257 43584082 50396514 65376123 130752246 152544287 305088574 457632861 675553271 915265722 1351106542 2026659813 4053319626 4728872897 9457745794 14186618691 28373237382