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1405060028 = 222801125407
BaseRepresentation
bin101001110111111…
…1000001110111100
310121220212110000022
41103233320032330
510334143410103
6351231151312
746550545631
oct12357701674
93556773008
101405060028
11661135439
12332675538
13195130988
14d486c188
1583544138
hex53bf83bc

1405060028 has 12 divisors (see below), whose sum is σ = 2459752512. Its totient is φ = 702273600.

The previous prime is 1405060021. The next prime is 1405060061. The reversal of 1405060028 is 8200605041.

It is a junction number, because it is equal to n+sod(n) for n = 1405059979 and 1405060006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1405060021) 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, 51500 + ... + 73907.

It is an arithmetic number, because the mean of its divisors is an integer number (204979376).

Almost surely, 21405060028 is an apocalyptic number.

It is an amenable number.

1405060028 is a deficient number, since it is larger than the sum of its proper divisors (1054692484).

1405060028 is a wasteful number, since it uses less digits than its factorization.

1405060028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128212 (or 128210 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 1405060028 is about 37484.1303487222. The cubic root of 1405060028 is about 1120.0350828721.

Adding to 1405060028 its reverse (8200605041), we get a palindrome (9605665069).

The spelling of 1405060028 in words is "one billion, four hundred five million, sixty thousand, twenty-eight".

Divisors: 1 2 4 2801 5602 11204 125407 250814 501628 351265007 702530014 1405060028