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1428458688 = 26322479963
BaseRepresentation
bin101010100100100…
…1000110011000000
310200112220012221100
41111021020303000
510411141134223
6353424454400
750253461406
oct12511106300
93615805840
101428458688
11673367178
1233a47a400
13199c34037
14d79dd476
1585617043
hex55248cc0

1428458688 has 42 divisors (see below), whose sum is σ = 4094420564. Its totient is φ = 476152704.

The previous prime is 1428458657. The next prime is 1428458699. The reversal of 1428458688 is 8868548241.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1239406 + ... + 1240557.

Almost surely, 21428458688 is an apocalyptic number.

1428458688 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1428458688 is an abundant number, since it is smaller than the sum of its proper divisors (2665961876).

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

1428458688 is a wasteful number, since it uses less digits than its factorization.

1428458688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2479981 (or 2479968 counting only the distinct ones).

The product of its digits is 3932160, while the sum is 54.

The square root of 1428458688 is about 37794.9558539232. The cubic root of 1428458688 is about 1126.2182524373.

The spelling of 1428458688 in words is "one billion, four hundred twenty-eight million, four hundred fifty-eight thousand, six hundred eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 144 192 288 576 2479963 4959926 7439889 9919852 14879778 19839704 22319667 29759556 39679408 44639334 59519112 79358816 89278668 119038224 158717632 178557336 238076448 357114672 476152896 714229344 1428458688