Search a number
-
+
470640052 = 22731611781
BaseRepresentation
bin11100000011010…
…110010110110100
31012210120222210001
4130003112112310
51430440440202
6114411241044
714443242301
oct3403262664
91183528701
10470640052
11221733923
12111749184
137667554c
14467120a8
152b4b8d87
hex1c0d65b4

470640052 has 12 divisors (see below), whose sum is σ = 834903076. Its totient is φ = 232096320.

The previous prime is 470640041. The next prime is 470640059. The reversal of 470640052 is 250046074.

It can be written as a sum of positive squares in 2 ways, for example, as 387538596 + 83101456 = 19686^2 + 9116^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 470640052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (470640059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 805599 + ... + 806182.

Almost surely, 2470640052 is an apocalyptic number.

It is an amenable number.

470640052 is a deficient number, since it is larger than the sum of its proper divisors (364263024).

470640052 is a wasteful number, since it uses less digits than its factorization.

470640052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1611858 (or 1611856 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 470640052 is about 21694.2400650495. The cubic root of 470640052 is about 777.8507852164.

The spelling of 470640052 in words is "four hundred seventy million, six hundred forty thousand, fifty-two".

Divisors: 1 2 4 73 146 292 1611781 3223562 6447124 117660013 235320026 470640052