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2801428838 = 213210976039
BaseRepresentation
bin1010011011111010…
…0110100101100110
321020020101022220122
42212332212211212
521214131210323
61141552201542
7126264516005
oct24676464546
97206338818
102801428838
111208373a4a
126622392b2
1335850a700
141c80b6c3c
15115e1cec8
hexa6fa6966

2801428838 has 24 divisors (see below), whose sum is σ = 4592055600. Its totient is φ = 1281088224.

The previous prime is 2801428829. The next prime is 2801428867. The reversal of 2801428838 is 8388241082.

It is a super-3 number, since 3×28014288383 (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1178 + ... + 74861.

It is an arithmetic number, because the mean of its divisors is an integer number (191335650).

Almost surely, 22801428838 is an apocalyptic number.

2801428838 is a deficient number, since it is larger than the sum of its proper divisors (1790626762).

2801428838 is a wasteful number, since it uses less digits than its factorization.

2801428838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76176 (or 76163 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 44.

The square root of 2801428838 is about 52928.5257493537. The cubic root of 2801428838 is about 1409.6994544106.

The spelling of 2801428838 in words is "two billion, eight hundred one million, four hundred twenty-eight thousand, eight hundred thirty-eight".

Divisors: 1 2 13 26 109 169 218 338 1417 2834 18421 36842 76039 152078 988507 1977014 8288251 12850591 16576502 25701182 107747263 215494526 1400714419 2801428838