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87878676 = 223233110271
BaseRepresentation
bin1010011110011…
…10110000010100
320010100200212210
411033032300110
5134444104201
612415313420
72114646024
oct517166024
9203320783
1087878676
1145672606
122551b870
131528b522
14b957a84
157aad1d6
hex53cec14

87878676 has 48 divisors (see below), whose sum is σ = 220889088. Its totient is φ = 27112800.

The previous prime is 87878603. The next prime is 87878683. The reversal of 87878676 is 67687878.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3421 + ... + 13691.

It is an arithmetic number, because the mean of its divisors is an integer number (4601856).

Almost surely, 287878676 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 87878676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110444544).

87878676 is an abundant number, since it is smaller than the sum of its proper divisors (133010412).

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

87878676 is a wasteful number, since it uses less digits than its factorization.

87878676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10332 (or 10330 counting only the distinct ones).

The product of its digits is 6322176, while the sum is 57.

The square root of 87878676 is about 9374.3626983385. The cubic root of 87878676 is about 444.5915133751.

The spelling of 87878676 in words is "eighty-seven million, eight hundred seventy-eight thousand, six hundred seventy-six".

Divisors: 1 2 3 4 6 12 23 31 46 62 69 92 93 124 138 186 276 372 713 1426 2139 2852 4278 8556 10271 20542 30813 41084 61626 123252 236233 318401 472466 636802 708699 944932 955203 1273604 1417398 1910406 2834796 3820812 7323223 14646446 21969669 29292892 43939338 87878676