Search a number
-
+
87470476 = 22139157321
BaseRepresentation
bin1010011011010…
…11000110001100
320002120221221021
411031223012030
5134343023401
612402443524
72111325652
oct515530614
9202527837
1087470476
1145413955
12253635a4
13151777a2
14b88cdd2
157a2c2a1
hex536b18c

87470476 has 12 divisors (see below), whose sum is σ = 154175560. Its totient is φ = 43420320.

The previous prime is 87470473. The next prime is 87470477. The reversal of 87470476 is 67407478.

It is not an unprimeable number, because it can be changed into a prime (87470473) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 78105 + ... + 79216.

Almost surely, 287470476 is an apocalyptic number.

It is an amenable number.

87470476 is a deficient number, since it is larger than the sum of its proper divisors (66705084).

87470476 is a wasteful number, since it uses less digits than its factorization.

87470476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157464 (or 157462 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 43.

The square root of 87470476 is about 9352.5652096096. The cubic root of 87470476 is about 443.9020629157.

The spelling of 87470476 in words is "eighty-seven million, four hundred seventy thousand, four hundred seventy-six".

Divisors: 1 2 4 139 278 556 157321 314642 629284 21867619 43735238 87470476