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2872688 = 247131973
BaseRepresentation
bin1010111101010101110000
312101221120212
422331111300
51213411223
6141323252
733263120
oct12752560
95357525
102872688
111692325
12b66528
13797720
1454ac80
153bb278
hex2bd570

2872688 has 40 divisors (see below), whose sum is σ = 6853728. Its totient is φ = 1135872.

The previous prime is 2872669. The next prime is 2872691. The reversal of 2872688 is 8862782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 470 + ... + 2442.

22872688 is an apocalyptic number.

2872688 is a gapful number since it is divisible by the number (28) 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 2872688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3426864).

2872688 is an abundant number, since it is smaller than the sum of its proper divisors (3981040).

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

2872688 is a wasteful number, since it uses less digits than its factorization.

2872688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2001 (or 1995 counting only the distinct ones).

The product of its digits is 86016, while the sum is 41.

The square root of 2872688 is about 1694.9005870552. The cubic root of 2872688 is about 142.1552227101.

The spelling of 2872688 in words is "two million, eight hundred seventy-two thousand, six hundred eighty-eight".

Divisors: 1 2 4 7 8 13 14 16 26 28 52 56 91 104 112 182 208 364 728 1456 1973 3946 7892 13811 15784 25649 27622 31568 51298 55244 102596 110488 179543 205192 220976 359086 410384 718172 1436344 2872688