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331000032 = 253113071021
BaseRepresentation
bin10011101110101…
…010100011100000
3212001211112200110
4103232222203200
51134214000112
652502251320
711126311446
oct2356524340
9761745613
10331000032
1115a928250
1292a26b40
135376300c
1431d62b96
151e0d413c
hex13baa8e0

331000032 has 96 divisors (see below), whose sum is σ = 951882624. Its totient is φ = 99878400.

The previous prime is 331000009. The next prime is 331000037. The reversal of 331000032 is 230000133.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×3310000322 = 219122042368002048, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 330999981 and 331000017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331000037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 323682 + ... + 324702.

It is an arithmetic number, because the mean of its divisors is an integer number (9915444).

Almost surely, 2331000032 is an apocalyptic number.

331000032 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 331000032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (475941312).

331000032 is an abundant number, since it is smaller than the sum of its proper divisors (620882592).

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

331000032 is a wasteful number, since it uses less digits than its factorization.

331000032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352 (or 1344 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 12.

The square root of 331000032 is about 18193.4062780998. The cubic root of 331000032 is about 691.7396639526.

Adding to 331000032 its reverse (230000133), we get a palindrome (561000165).

The spelling of 331000032 in words is "three hundred thirty-one million, thirty-two", and thus it is an aban number.

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 66 88 96 132 176 264 307 352 528 614 921 1021 1056 1228 1842 2042 2456 3063 3377 3684 4084 4912 6126 6754 7368 8168 9824 10131 11231 12252 13508 14736 16336 20262 22462 24504 27016 29472 32672 33693 40524 44924 49008 54032 67386 81048 89848 98016 108064 134772 162096 179696 269544 313447 324192 359392 539088 626894 940341 1078176 1253788 1880682 2507576 3447917 3761364 5015152 6895834 7522728 10030304 10343751 13791668 15045456 20687502 27583336 30090912 41375004 55166672 82750008 110333344 165500016 331000032