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1429191860 = 225431661851
BaseRepresentation
bin101010100101111…
…1011110010110100
310200121021110122212
41111023323302310
510411333114420
6353452312552
750262634055
oct12513736264
93617243585
101429191860
11673817aa8
1233a772758
1319a12c975
14d7b5072c
158570e3c5
hex552fbcb4

1429191860 has 24 divisors (see below), whose sum is σ = 3071102496. Its totient is φ = 558381600.

The previous prime is 1429191851. The next prime is 1429191877. The reversal of 1429191860 is 681919241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 830066 + ... + 831785.

It is an arithmetic number, because the mean of its divisors is an integer number (127962604).

Almost surely, 21429191860 is an apocalyptic number.

1429191860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1429191860 is an abundant number, since it is smaller than the sum of its proper divisors (1641910636).

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

1429191860 is a wasteful number, since it uses less digits than its factorization.

1429191860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1661903 (or 1661901 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 1429191860 is about 37804.6539463067. The cubic root of 1429191860 is about 1126.4109007482.

The spelling of 1429191860 in words is "one billion, four hundred twenty-nine million, one hundred ninety-one thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 43 86 172 215 430 860 1661851 3323702 6647404 8309255 16618510 33237020 71459593 142919186 285838372 357297965 714595930 1429191860