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1039435930 = 251317470333
BaseRepresentation
bin111101111101001…
…000100010011010
32200102212211001001
4331331020202122
54112043422210
6251050415214
734521026311
oct7575104232
92612784031
101039435930
11493809665
1225013150a
13137467060
149c095278
15613c103a
hex3df4889a

1039435930 has 32 divisors (see below), whose sum is σ = 2133435024. Its totient is φ = 361214976.

The previous prime is 1039435897. The next prime is 1039435937. The reversal of 1039435930 is 395349301.

It can be written as a sum of positive squares in 8 ways, for example, as 706336929 + 333099001 = 26577^2 + 18251^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1039435930.

It is not an unprimeable number, because it can be changed into a prime (1039435937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232957 + ... + 237376.

Almost surely, 21039435930 is an apocalyptic number.

1039435930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1039435930 is an abundant number, since it is smaller than the sum of its proper divisors (1093999094).

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

1039435930 is a wasteful number, since it uses less digits than its factorization.

1039435930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470370.

The product of its (nonzero) digits is 43740, while the sum is 37.

The square root of 1039435930 is about 32240.2842729403. The cubic root of 1039435930 is about 1012.9761999172.

The spelling of 1039435930 in words is "one billion, thirty-nine million, four hundred thirty-five thousand, nine hundred thirty".

Divisors: 1 2 5 10 13 17 26 34 65 85 130 170 221 442 1105 2210 470333 940666 2351665 4703330 6114329 7995661 12228658 15991322 30571645 39978305 61143290 79956610 103943593 207887186 519717965 1039435930