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3031471872 = 283311133067
BaseRepresentation
bin1011010010110000…
…1001011100000000
321211021020201122000
42310230021130000
522202024044442
61220450544000
7135060041262
oct26454113400
97737221560
103031471872
111316206760
12707298000
13394083450
1420a879b32
1512b20dd4c
hexb4b09700

3031471872 has 288 divisors, whose sum is σ = 10535266560. Its totient is φ = 847687680.

The previous prime is 3031471871. The next prime is 3031471879. The reversal of 3031471872 is 2781741303.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3031471871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 986883 + ... + 989949.

Almost surely, 23031471872 is an apocalyptic number.

3031471872 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3031471872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5267633280).

3031471872 is an abundant number, since it is smaller than the sum of its proper divisors (7503794688).

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

3031471872 is a wasteful number, since it uses less digits than its factorization.

3031471872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3116 (or 3096 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 3031471872 is about 55058.8037647023. The cubic root of 3031471872 is about 1447.2754023456.

The spelling of 3031471872 in words is "three billion, thirty-one million, four hundred seventy-one thousand, eight hundred seventy-two".