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82887960 = 23351096337
BaseRepresentation
bin1001111000011…
…00010100011000
312202222010220110
410330030110120
5132204403320
612120324320
72024351601
oct474142430
9182863813
1082887960
1142873a51
12239136a0
1314231a3c
14b018da8
1574245e0
hex4f0c518

82887960 has 64 divisors (see below), whose sum is σ = 250984800. Its totient is φ = 21897216.

The previous prime is 82887953. The next prime is 82887967. The reversal of 82887960 is 6978828.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (82887953) and next prime (82887967).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82887967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9912 + ... + 16248.

Almost surely, 282887960 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 82887960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125492400).

82887960 is an abundant number, since it is smaller than the sum of its proper divisors (168096840).

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

82887960 is a wasteful number, since it uses less digits than its factorization.

82887960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6460 (or 6456 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 48.

The square root of 82887960 is about 9104.2825087977. The cubic root of 82887960 is about 436.0107031012.

It can be divided in two parts, 828 and 87960, that added together give a palindrome (88788).

The spelling of 82887960 in words is "eighty-two million, eight hundred eighty-seven thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 109 120 218 327 436 545 654 872 1090 1308 1635 2180 2616 3270 4360 6337 6540 12674 13080 19011 25348 31685 38022 50696 63370 76044 95055 126740 152088 190110 253480 380220 690733 760440 1381466 2072199 2762932 3453665 4144398 5525864 6907330 8288796 10360995 13814660 16577592 20721990 27629320 41443980 82887960