Search a number
-
+
1428141774 = 23431552259
BaseRepresentation
bin101010100011111…
…1011011011001110
310200112022010012210
41111013323123032
510411101014044
6353414011250
750251001433
oct12507733316
93615263183
101428141774
11673170064
1233a346b26
13199b52a07
14d7959b8a
15855a31b9
hex551fb6ce

1428141774 has 16 divisors (see below), whose sum is σ = 2862915840. Its totient is φ = 474941880.

The previous prime is 1428141769. The next prime is 1428141779. The reversal of 1428141774 is 4771418241.

It is an interprime number because it is at equal distance from previous prime (1428141769) and next prime (1428141779).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428141779) 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 7 ways as a sum of consecutive naturals, for example, 273544 + ... + 278715.

It is an arithmetic number, because the mean of its divisors is an integer number (178932240).

Almost surely, 21428141774 is an apocalyptic number.

1428141774 is an abundant number, since it is smaller than the sum of its proper divisors (1434774066).

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

1428141774 is a wasteful number, since it uses less digits than its factorization.

1428141774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552695.

The product of its digits is 50176, while the sum is 39.

The square root of 1428141774 is about 37790.7630777681. The cubic root of 1428141774 is about 1126.1349596938.

The spelling of 1428141774 in words is "one billion, four hundred twenty-eight million, one hundred forty-one thousand, seven hundred seventy-four".

Divisors: 1 2 3 6 431 862 1293 2586 552259 1104518 1656777 3313554 238023629 476047258 714070887 1428141774