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1428650930 = 257172694463
BaseRepresentation
bin101010100100111…
…0111101110110010
310200120020222122102
41111021313232302
510411213312210
6353432540402
750255222030
oct12511675662
93616228572
101428650930
11673488653
1233a551702
13199ca06a5
14d7a4d550
1585653ea5
hex55277bb2

1428650930 has 64 divisors (see below), whose sum is σ = 3124085760. Its totient is φ = 459193344.

The previous prime is 1428650929. The next prime is 1428650939. The reversal of 1428650930 is 390568241.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1428650939) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 317879 + ... + 322341.

It is an arithmetic number, because the mean of its divisors is an integer number (48813840).

Almost surely, 21428650930 is an apocalyptic number.

1428650930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1428650930 is an abundant number, since it is smaller than the sum of its proper divisors (1695434830).

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

1428650930 is a wasteful number, since it uses less digits than its factorization.

1428650930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4763.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 1428650930 is about 37797.4989913354. The cubic root of 1428650930 is about 1126.2687723297.

The spelling of 1428650930 in words is "one billion, four hundred twenty-eight million, six hundred fifty thousand, nine hundred thirty".

Divisors: 1 2 5 7 10 14 17 34 35 70 85 119 170 238 269 538 595 1190 1345 1883 2690 3766 4463 4573 8926 9146 9415 18830 22315 22865 31241 32011 44630 45730 62482 64022 75871 151742 156205 160055 312410 320110 379355 531097 758710 1062194 1200547 2401094 2655485 5310970 6002735 8403829 12005470 16807658 20409299 40818598 42019145 84038290 102046495 142865093 204092990 285730186 714325465 1428650930