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87340194 = 2344711471
BaseRepresentation
bin1010011010010…
…11010010100010
320002100100020000
411031023102202
5134324341234
612400000430
72110244064
oct515132242
9202310200
1087340194
1145334a87
1225300116
13151303b6
14b857734
157a03899
hex534b4a2

87340194 has 40 divisors (see below), whose sum is σ = 199888128. Its totient is φ = 28491480.

The previous prime is 87340163. The next prime is 87340213. The reversal of 87340194 is 49104378.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1879 + ... + 13349.

Almost surely, 287340194 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87340194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99944064).

87340194 is an abundant number, since it is smaller than the sum of its proper divisors (112547934).

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

87340194 is a wasteful number, since it uses less digits than its factorization.

87340194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11532 (or 11523 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 87340194 is about 9345.5975731892. The cubic root of 87340194 is about 443.6815649540.

The spelling of 87340194 in words is "eighty-seven million, three hundred forty thousand, one hundred ninety-four".

Divisors: 1 2 3 6 9 18 27 47 54 81 94 141 162 282 423 846 1269 2538 3807 7614 11471 22942 34413 68826 103239 206478 309717 539137 619434 929151 1078274 1617411 1858302 3234822 4852233 9704466 14556699 29113398 43670097 87340194