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3172988 = 2271323379
BaseRepresentation
bin1100000110101001111100
312222012112002
430012221330
51303013423
6152001432
735653460
oct14065174
95865462
103172988
111877a05
121090278
13871310
145c84a0
1542a228
hex306a7c

3172988 has 48 divisors (see below), whose sum is σ = 7150080. Its totient is φ = 1197504.

The previous prime is 3172987. The next prime is 3172991. The reversal of 3172988 is 8892713.

3172988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3172987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8183 + ... + 8561.

It is an arithmetic number, because the mean of its divisors is an integer number (148960).

Almost surely, 23172988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3172988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3575040).

3172988 is an abundant number, since it is smaller than the sum of its proper divisors (3977092).

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

3172988 is a wasteful number, since it uses less digits than its factorization.

3172988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426 (or 424 counting only the distinct ones).

The product of its digits is 24192, while the sum is 38.

The square root of 3172988 is about 1781.2882978339. The cubic root of 3172988 is about 146.9454500112.

The spelling of 3172988 in words is "three million, one hundred seventy-two thousand, nine hundred eighty-eight".

Divisors: 1 2 4 7 13 14 23 26 28 46 52 91 92 161 182 299 322 364 379 598 644 758 1196 1516 2093 2653 4186 4927 5306 8372 8717 9854 10612 17434 19708 34489 34868 61019 68978 113321 122038 137956 226642 244076 453284 793247 1586494 3172988