Search a number
-
+
87076992 = 2731713339
BaseRepresentation
bin1010011000010…
…11000010000000
320001211222011210
411030023002000
5134242430432
612350210120
72105066532
oct514130200
9201758153
1087076992
1145175262
12251b3940
131506a662
14b7c9852
1579a08cc
hex530b080

87076992 has 64 divisors (see below), whose sum is σ = 244922400. Its totient is φ = 27316224.

The previous prime is 87076991. The next prime is 87077051. The reversal of 87076992 is 29967078.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87076991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142 + ... + 13197.

Almost surely, 287076992 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 87076992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122461200).

87076992 is an abundant number, since it is smaller than the sum of its proper divisors (157845408).

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

87076992 is a wasteful number, since it uses less digits than its factorization.

87076992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13373 (or 13361 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 87076992 is about 9331.5053447983. The cubic root of 87076992 is about 443.2354344418.

The spelling of 87076992 in words is "eighty-seven million, seventy-six thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 16 17 24 32 34 48 51 64 68 96 102 128 136 192 204 272 384 408 544 816 1088 1632 2176 3264 6528 13339 26678 40017 53356 80034 106712 160068 213424 226763 320136 426848 453526 640272 680289 853696 907052 1280544 1360578 1707392 1814104 2561088 2721156 3628208 5122176 5442312 7256416 10884624 14512832 21769248 29025664 43538496 87076992