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87798396 = 2237383257
BaseRepresentation
bin1010011101110…
…11001001111100
320010012121202110
411032323021330
5134434022041
612413454020
72114163000
oct516731174
9203177673
1087798396
1145618264
12254a1310
1315260b1a
14b936700
157a94516
hex53bb27c

87798396 has 96 divisors (see below), whose sum is σ = 242726400. Its totient is φ = 24686592.

The previous prime is 87798331. The next prime is 87798419. The reversal of 87798396 is 69389778.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 341500 + ... + 341756.

It is an arithmetic number, because the mean of its divisors is an integer number (2528400).

Almost surely, 287798396 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 87798396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121363200).

87798396 is an abundant number, since it is smaller than the sum of its proper divisors (154928004).

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

87798396 is a wasteful number, since it uses less digits than its factorization.

87798396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368 (or 352 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 57.

The square root of 87798396 is about 9370.0798289022. The cubic root of 87798396 is about 444.4560892412.

The spelling of 87798396 in words is "eighty-seven million, seven hundred ninety-eight thousand, three hundred ninety-six".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 49 83 84 98 147 166 196 249 257 294 332 343 498 514 581 588 686 771 996 1028 1029 1162 1372 1542 1743 1799 2058 2324 3084 3486 3598 4067 4116 5397 6972 7196 8134 10794 12201 12593 16268 21331 21588 24402 25186 28469 37779 42662 48804 50372 56938 63993 75558 85324 85407 88151 113876 127986 149317 151116 170814 176302 255972 264453 298634 341628 352604 447951 528906 597268 895902 1045219 1057812 1791804 2090438 3135657 4180876 6271314 7316533 12542628 14633066 21949599 29266132 43899198 87798396