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228107502 = 2357193529
BaseRepresentation
bin11011001100010…
…10010011101110
3120220020001200000
431212022103232
5431343420002
634345045130
75436611310
oct1546122356
9526201600
10228107502
111078405a7
12644867a6
1338348a6c
142241b7b0
151505c61c
hexd98a4ee

228107502 has 96 divisors (see below), whose sum is σ = 616761600. Its totient is φ = 61725888.

The previous prime is 228107501. The next prime is 228107507. The reversal of 228107502 is 205701822.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228107501) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 62874 + ... + 66402.

It is an arithmetic number, because the mean of its divisors is an integer number (6424600).

Almost surely, 2228107502 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228107502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308380800).

228107502 is an abundant number, since it is smaller than the sum of its proper divisors (388654098).

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

228107502 is a wasteful number, since it uses less digits than its factorization.

228107502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3572 (or 3560 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 228107502 is about 15103.2281979715. The cubic root of 228107502 is about 611.0074742626.

The spelling of 228107502 in words is "two hundred twenty-eight million, one hundred seven thousand, five hundred two".

Divisors: 1 2 3 6 7 9 14 18 19 21 27 38 42 54 57 63 81 114 126 133 162 171 189 243 266 342 378 399 486 513 567 798 1026 1134 1197 1539 1701 2394 3078 3402 3529 3591 4617 7058 7182 9234 10587 10773 21174 21546 24703 31761 32319 49406 63522 64638 67051 74109 95283 134102 148218 190566 201153 222327 285849 402306 444654 469357 571698 603459 666981 857547 938714 1206918 1333962 1408071 1715094 1810377 2000943 2816142 3620754 4001886 4224213 5431131 6002829 8448426 10862262 12005658 12672639 16293393 25345278 32586786 38017917 76035834 114053751 228107502