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1002874431 = 31325714729
BaseRepresentation
bin111011110001101…
…010011000111111
32120220002022002110
4323301222120333
54023213440211
6243303025103
733565202106
oct7361523077
92526068073
101002874431
11475107449
1223ba3b193
1312ca05630
149729903d
155d09cea6
hex3bc6a63f

1002874431 has 8 divisors (see below), whose sum is σ = 1440024880. Its totient is φ = 617153472.

The previous prime is 1002874429. The next prime is 1002874441. The reversal of 1002874431 is 1344782001.

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

It is not a de Polignac number, because 1002874431 - 21 = 1002874429 is a prime.

It is a super-2 number, since 2×10028744312 = 2011514248707147522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002874441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12857326 + ... + 12857403.

It is an arithmetic number, because the mean of its divisors is an integer number (180003110).

Almost surely, 21002874431 is an apocalyptic number.

1002874431 is a deficient number, since it is larger than the sum of its proper divisors (437150449).

1002874431 is a wasteful number, since it uses less digits than its factorization.

1002874431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25714745.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 1002874431 is about 31668.1927334037. The cubic root of 1002874431 is about 1000.9572270906.

The spelling of 1002874431 in words is "one billion, two million, eight hundred seventy-four thousand, four hundred thirty-one".

Divisors: 1 3 13 39 25714729 77144187 334291477 1002874431