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331103032 = 231323149929
BaseRepresentation
bin10011101111000…
…011101100111000
3212002000202222021
4103233003230320
51134230244112
652504404224
711130220651
oct2357035470
9762022867
10331103032
1115a998677
1292a76674
135379ab70
1431d8c528
151e104907
hex13bc3b38

331103032 has 64 divisors (see below), whose sum is σ = 703080000. Its totient is φ = 145035264.

The previous prime is 331103029. The next prime is 331103077. The reversal of 331103032 is 230301133.

It is a junction number, because it is equal to n+sod(n) for n = 331102997 and 331103015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 355944 + ... + 356872.

It is an arithmetic number, because the mean of its divisors is an integer number (10985625).

Almost surely, 2331103032 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 331103032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (351540000).

331103032 is an abundant number, since it is smaller than the sum of its proper divisors (371976968).

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

331103032 is a wasteful number, since it uses less digits than its factorization.

331103032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120 (or 1116 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 331103032 is about 18196.2367537906. The cubic root of 331103032 is about 691.8114079500.

Adding to 331103032 its reverse (230301133), we get a palindrome (561404165).

The spelling of 331103032 in words is "three hundred thirty-one million, one hundred three thousand, thirty-two".

Divisors: 1 2 4 8 13 23 26 46 52 92 104 149 184 298 299 596 598 929 1192 1196 1858 1937 2392 3427 3716 3874 6854 7432 7748 12077 13708 15496 21367 24154 27416 42734 44551 48308 85468 89102 96616 138421 170936 178204 276842 277771 356408 553684 555542 1107368 1111084 1799473 2222168 3183683 3598946 6367366 7197892 12734732 14395784 25469464 41387879 82775758 165551516 331103032