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1028960438 = 21146770929
BaseRepresentation
bin111101010101001…
…011000010110110
32122201011121100212
4331111023002312
54101403213223
6250034105422
734333006442
oct7525130266
92581147325
101028960438
11488904230
1224871b272
13135239c3c
149a929822
1560502278
hex3d54b0b6

1028960438 has 8 divisors (see below), whose sum is σ = 1683753480. Its totient is φ = 467709280.

The previous prime is 1028960437. The next prime is 1028960467. The reversal of 1028960438 is 8340698201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1028960395 and 1028960404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028960437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23385443 + ... + 23385486.

It is an arithmetic number, because the mean of its divisors is an integer number (210469185).

Almost surely, 21028960438 is an apocalyptic number.

1028960438 is a deficient number, since it is larger than the sum of its proper divisors (654793042).

1028960438 is a wasteful number, since it uses less digits than its factorization.

1028960438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46770942.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 1028960438 is about 32077.4132061798. The cubic root of 1028960438 is about 1009.5617606644.

The spelling of 1028960438 in words is "one billion, twenty-eight million, nine hundred sixty thousand, four hundred thirty-eight".

Divisors: 1 2 11 22 46770929 93541858 514480219 1028960438