Search a number
-
+
121031352 = 233213191677
BaseRepresentation
bin1110011011011…
…00101010111000
322102202000210200
413031230222320
5221441000402
620002042200
72666515041
oct715545270
9272660720
10121031352
1162356712
1234649360
131c0c84b0
14121078c8
15a95b21c
hex736cab8

121031352 has 96 divisors (see below), whose sum is σ = 355380480. Its totient is φ = 36990720.

The previous prime is 121031327. The next prime is 121031363. The reversal of 121031352 is 253130121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 178438 + ... + 179114.

It is an arithmetic number, because the mean of its divisors is an integer number (3701880).

Almost surely, 2121031352 is an apocalyptic number.

121031352 is a gapful number since it is divisible by the number (12) 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 121031352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177690240).

121031352 is an abundant number, since it is smaller than the sum of its proper divisors (234349128).

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

121031352 is a wasteful number, since it uses less digits than its factorization.

121031352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893 (or 886 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 121031352 is about 11001.4249986081. The cubic root of 121031352 is about 494.6514595707.

Adding to 121031352 its reverse (253130121), we get a palindrome (374161473).

The spelling of 121031352 in words is "one hundred twenty-one million, thirty-one thousand, three hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 13 18 24 26 36 39 52 72 78 104 117 156 191 234 312 382 468 573 677 764 936 1146 1354 1528 1719 2031 2292 2483 2708 3438 4062 4584 4966 5416 6093 6876 7449 8124 8801 9932 12186 13752 14898 16248 17602 19864 22347 24372 26403 29796 35204 44694 48744 52806 59592 70408 79209 89388 105612 129307 158418 178776 211224 258614 316836 387921 517228 633672 775842 1034456 1163763 1551684 1680991 2327526 3103368 3361982 4655052 5042973 6723964 9310104 10085946 13447928 15128919 20171892 30257838 40343784 60515676 121031352