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68902275 = 35213174157
BaseRepresentation
bin1000001101101…
…01110110000011
311210122121011010
410012311312003
5120114333100
610500452003
71464442161
oct406656603
9153577133
1068902275
1135991332
121b0aa003
1311375ca0
149218231
1560b0750
hex41b5d83

68902275 has 48 divisors (see below), whose sum is σ = 129929184. Its totient is φ = 31918080.

The previous prime is 68902247. The next prime is 68902277. The reversal of 68902275 is 57220986.

It is a happy number.

It is not a de Polignac number, because 68902275 - 214 = 68885891 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68902277) 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 47 ways as a sum of consecutive naturals, for example, 14497 + ... + 18653.

It is an arithmetic number, because the mean of its divisors is an integer number (2706858).

Almost surely, 268902275 is an apocalyptic number.

68902275 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

68902275 is a deficient number, since it is larger than the sum of its proper divisors (61026909).

68902275 is a wasteful number, since it uses less digits than its factorization.

68902275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4200 (or 4195 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 68902275 is about 8300.7394248946. The cubic root of 68902275 is about 409.9628659607.

The spelling of 68902275 in words is "sixty-eight million, nine hundred two thousand, two hundred seventy-five".

Divisors: 1 3 5 13 15 17 25 39 51 65 75 85 195 221 255 325 425 663 975 1105 1275 3315 4157 5525 12471 16575 20785 54041 62355 70669 103925 162123 212007 270205 311775 353345 810615 918697 1060035 1351025 1766725 2756091 4053075 4593485 5300175 13780455 22967425 68902275