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2128370488 = 231715649783
BaseRepresentation
bin111111011011100…
…0101101100111000
312111022220102102121
41332313011230320
513324330323423
6551110211024
7103512564526
oct17667055470
95438812377
102128370488
119a2456282
124b4953a74
1327bc4222a
14162953316
15c6cbd45d
hex7edc5b38

2128370488 has 16 divisors (see below), whose sum is σ = 4225441680. Its totient is φ = 1001586048.

The previous prime is 2128370483. The next prime is 2128370501. The reversal of 2128370488 is 8840738212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2128370483) 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 3 ways as a sum of consecutive naturals, for example, 7824756 + ... + 7825027.

It is an arithmetic number, because the mean of its divisors is an integer number (264090105).

Almost surely, 22128370488 is an apocalyptic number.

It is an amenable number.

2128370488 is a deficient number, since it is larger than the sum of its proper divisors (2097071192).

2128370488 is a wasteful number, since it uses less digits than its factorization.

2128370488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15649806 (or 15649802 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 43.

The square root of 2128370488 is about 46134.2658768946. The cubic root of 2128370488 is about 1286.3201597040.

The spelling of 2128370488 in words is "two billion, one hundred twenty-eight million, three hundred seventy thousand, four hundred eighty-eight".

Divisors: 1 2 4 8 17 34 68 136 15649783 31299566 62599132 125198264 266046311 532092622 1064185244 2128370488