Search a number
-
+
87982412 = 22717184837
BaseRepresentation
bin1010011111010…
…00000101001100
320010112222011212
411033220011030
5140010414122
612421433552
72115560330
oct517500514
9203488155
1087982412
1145733541
122556b8b8
13152c67cb
14b9837c0
157acdce2
hex53e814c

87982412 has 24 divisors (see below), whose sum is σ = 186316704. Its totient is φ = 35488512.

The previous prime is 87982403. The next prime is 87982421. The reversal of 87982412 is 21428978.

It is an interprime number because it is at equal distance from previous prime (87982403) and next prime (87982421).

It is a self number, because there is not a number n which added to its sum of digits gives 87982412.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91943 + ... + 92894.

It is an arithmetic number, because the mean of its divisors is an integer number (7763196).

Almost surely, 287982412 is an apocalyptic number.

It is an amenable number.

87982412 is an abundant number, since it is smaller than the sum of its proper divisors (98334292).

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

87982412 is a wasteful number, since it uses less digits than its factorization.

87982412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184865 (or 184863 counting only the distinct ones).

The product of its digits is 64512, while the sum is 41.

The square root of 87982412 is about 9379.8940292521. The cubic root of 87982412 is about 444.7663832896.

The spelling of 87982412 in words is "eighty-seven million, nine hundred eighty-two thousand, four hundred twelve".

Divisors: 1 2 4 7 14 17 28 34 68 119 238 476 184837 369674 739348 1293859 2587718 3142229 5175436 6284458 12568916 21995603 43991206 87982412