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225013478 = 2139809401
BaseRepresentation
bin11010110100101…
…10111011100110
3120200101212110112
431122112323212
5430100412403
634154453022
75401403654
oct1532267346
9520355415
10225013478
11106017a58
1263434172
1337804691
1421c53dd4
1514b4a9d8
hexd696ee6

225013478 has 8 divisors (see below), whose sum is σ = 339948840. Its totient is φ = 111697200.

The previous prime is 225013457. The next prime is 225013511. The reversal of 225013478 is 874310522.

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

It is a congruent number.

It is an unprimeable number.

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, 404423 + ... + 404978.

It is an arithmetic number, because the mean of its divisors is an integer number (42493605).

Almost surely, 2225013478 is an apocalyptic number.

225013478 is a deficient number, since it is larger than the sum of its proper divisors (114935362).

225013478 is a wasteful number, since it uses less digits than its factorization.

225013478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809542.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 225013478 is about 15000.4492599389. The cubic root of 225013478 is about 608.2323438954.

The spelling of 225013478 in words is "two hundred twenty-five million, thirteen thousand, four hundred seventy-eight".

Divisors: 1 2 139 278 809401 1618802 112506739 225013478