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1428703948 = 227221323057
BaseRepresentation
bin101010100101000…
…0100101011001100
310200120100200101001
41111022010223030
510411222011243
6353434030044
750255532430
oct12512045314
93616320331
101428703948
11673514471
1233a578324
13199cbb869
14d7a649c0
1585664a4d
hex55284acc

1428703948 has 24 divisors (see below), whose sum is σ = 2858823072. Its totient is φ = 611998464.

The previous prime is 1428703943. The next prime is 1428703967. The reversal of 1428703948 is 8493078241.

It is a junction number, because it is equal to n+sod(n) for n = 1428703898 and 1428703907.

It is not an unprimeable number, because it can be changed into a prime (1428703943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50436 + ... + 73492.

It is an arithmetic number, because the mean of its divisors is an integer number (119117628).

Almost surely, 21428703948 is an apocalyptic number.

It is an amenable number.

1428703948 is an abundant number, since it is smaller than the sum of its proper divisors (1430119124).

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

1428703948 is a wasteful number, since it uses less digits than its factorization.

1428703948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25281 (or 25279 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 1428703948 is about 37798.2003275288. The cubic root of 1428703948 is about 1126.2827043028.

The spelling of 1428703948 in words is "one billion, four hundred twenty-eight million, seven hundred three thousand, nine hundred forty-eight".

Divisors: 1 2 4 7 14 28 2213 4426 8852 15491 23057 30982 46114 61964 92228 161399 322798 645596 51025141 102050282 204100564 357175987 714351974 1428703948