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87473380 = 22527116139
BaseRepresentation
bin1010011011010…
…11110011100100
320002121002220211
411031223303210
5134343122010
612402505204
72111340301
oct515536344
9202532824
1087473380
1145416055
1225365204
1315178bc7
14b8900a8
157a2d08a
hex536bce4

87473380 has 24 divisors (see below), whose sum is σ = 184383360. Its totient is φ = 34858080.

The previous prime is 87473369. The next prime is 87473389. The reversal of 87473380 is 8337478.

It is not an unprimeable number, because it can be changed into a prime (87473389) 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, 2650 + ... + 13489.

It is an arithmetic number, because the mean of its divisors is an integer number (7682640).

Almost surely, 287473380 is an apocalyptic number.

It is an amenable number.

87473380 is an abundant number, since it is smaller than the sum of its proper divisors (96909980).

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

87473380 is a wasteful number, since it uses less digits than its factorization.

87473380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16419 (or 16417 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 87473380 is about 9352.7204598448. The cubic root of 87473380 is about 443.9069753440.

The spelling of 87473380 in words is "eighty-seven million, four hundred seventy-three thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 271 542 1084 1355 2710 5420 16139 32278 64556 80695 161390 322780 4373669 8747338 17494676 21868345 43736690 87473380