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31068352 = 26729907
BaseRepresentation
bin111011010000…
…1000011000000
32011110102202201
41312201003000
530423141402
63025522544
7525035200
oct166410300
964412681
1031068352
11165a0127
12a4a3454
13658a353
1441aa400
152ada687
hex1da10c0

31068352 has 42 divisors (see below), whose sum is σ = 71724012. Its totient is φ = 13313664.

The previous prime is 31068341. The next prime is 31068361. The reversal of 31068352 is 25386013.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 31068352.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1818 + ... + 8089.

Almost surely, 231068352 is an apocalyptic number.

31068352 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31068352 is an abundant number, since it is smaller than the sum of its proper divisors (40655660).

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

31068352 is an equidigital number, since it uses as much as digits as its factorization.

31068352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9933 (or 9916 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 31068352 is about 5573.8991738280. The cubic root of 31068352 is about 314.3687771008.

The spelling of 31068352 in words is "thirty-one million, sixty-eight thousand, three hundred fifty-two".

Divisors: 1 2 4 7 8 14 16 28 32 49 56 64 98 112 196 224 392 448 784 1568 3136 9907 19814 39628 69349 79256 138698 158512 277396 317024 485443 554792 634048 970886 1109584 1941772 2219168 3883544 4438336 7767088 15534176 31068352