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1029393087 = 31451236479
BaseRepresentation
bin111101010110110…
…100101010111111
32122201222120211220
4331112310222333
54102011034322
6250051244423
734336461012
oct7526645277
92581876756
101029393087
1148907a298
122488a9713
1313535bb48
149a9dd379
156058a55c
hex3d5b4abf

1029393087 has 8 divisors (see below), whose sum is σ = 1373475840. Its totient is φ = 685786200.

The previous prime is 1029393067. The next prime is 1029393089. The reversal of 1029393087 is 7803939201.

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

It is a de Polignac number, because none of the positive numbers 2k-1029393087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1029393089) 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, 113887 + ... + 122592.

It is an arithmetic number, because the mean of its divisors is an integer number (171684480).

Almost surely, 21029393087 is an apocalyptic number.

1029393087 is a deficient number, since it is larger than the sum of its proper divisors (344082753).

1029393087 is a wasteful number, since it uses less digits than its factorization.

1029393087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237933.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 1029393087 is about 32084.1563236436. The cubic root of 1029393087 is about 1009.7032383040.

The spelling of 1029393087 in words is "one billion, twenty-nine million, three hundred ninety-three thousand, eighty-seven".

Divisors: 1 3 1451 4353 236479 709437 343131029 1029393087