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172484474 = 2166951673
BaseRepresentation
bin10100100011111…
…10011101111010
3110000120010012212
422101332131322
5323124000344
625040535122
74163044121
oct1221763572
9400503185
10172484474
11893aa158
12499214a2
1329972126
1418c9cab8
151022179e
hexa47e77a

172484474 has 8 divisors (see below), whose sum is σ = 258886740. Its totient is φ = 86188896.

The previous prime is 172484471. The next prime is 172484503. The reversal of 172484474 is 474484271.

It can be written as a sum of positive squares in 2 ways, for example, as 151462249 + 21022225 = 12307^2 + 4585^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (172484471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22499 + ... + 29174.

Almost surely, 2172484474 is an apocalyptic number.

172484474 is a deficient number, since it is larger than the sum of its proper divisors (86402266).

172484474 is a wasteful number, since it uses less digits than its factorization.

172484474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53344.

The product of its digits is 200704, while the sum is 41.

The square root of 172484474 is about 13133.3344585448. The cubic root of 172484474 is about 556.6514391395.

The spelling of 172484474 in words is "one hundred seventy-two million, four hundred eighty-four thousand, four hundred seventy-four".

Divisors: 1 2 1669 3338 51673 103346 86242237 172484474