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1029393389 = 4732516737
BaseRepresentation
bin111101010110110…
…100101111101101
32122201222121021002
4331112310233231
54102011042024
6250051250045
734336461623
oct7526645755
92581877232
101029393389
1148907a542
122488a9925
1313535c01b
149a9dd513
156058a6ae
hex3d5b4bed

1029393389 has 8 divisors (see below), whose sum is σ = 1051774848. Its totient is φ = 1007032000.

The previous prime is 1029393353. The next prime is 1029393413. The reversal of 1029393389 is 9833939201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1029393389 - 28 = 1029393133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1029393319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149429 + ... + 156165.

It is an arithmetic number, because the mean of its divisors is an integer number (131471856).

Almost surely, 21029393389 is an apocalyptic number.

It is an amenable number.

1029393389 is a deficient number, since it is larger than the sum of its proper divisors (22381459).

1029393389 is an equidigital number, since it uses as much as digits as its factorization.

1029393389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10035.

The product of its (nonzero) digits is 314928, while the sum is 47.

The square root of 1029393389 is about 32084.1610300160. The cubic root of 1029393389 is about 1009.7033370451.

The spelling of 1029393389 in words is "one billion, twenty-nine million, three hundred ninety-three thousand, three hundred eighty-nine".

Divisors: 1 47 3251 6737 152797 316639 21901987 1029393389