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68348555 = 5112514951
BaseRepresentation
bin1000001001011…
…10101010001011
311202121110120222
410010232222023
5114444123210
610440540255
71456644632
oct404565213
9152543528
1068348555
1135643310
121aa8168b
1311210c42
149112519
156001655
hex412ea8b

68348555 has 16 divisors (see below), whose sum is σ = 89849088. Its totient is φ = 49500000.

The previous prime is 68348549. The next prime is 68348557. The reversal of 68348555 is 55584386.

It is not a de Polignac number, because 68348555 - 214 = 68332171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68348557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11330 + ... + 16280.

It is an arithmetic number, because the mean of its divisors is an integer number (5615568).

Almost surely, 268348555 is an apocalyptic number.

68348555 is a deficient number, since it is larger than the sum of its proper divisors (21500533).

68348555 is a wasteful number, since it uses less digits than its factorization.

68348555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5218.

The product of its digits is 576000, while the sum is 44.

The square root of 68348555 is about 8267.3184890870. The cubic root of 68348555 is about 408.8617147972.

The spelling of 68348555 in words is "sixty-eight million, three hundred forty-eight thousand, five hundred fifty-five".

Divisors: 1 5 11 55 251 1255 2761 4951 13805 24755 54461 272305 1242701 6213505 13669711 68348555