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68740302 = 2337419739
BaseRepresentation
bin1000001100011…
…10010011001110
311210100100222010
410012032103032
5120044142202
610453202050
71463166021
oct406162316
9153310863
1068740302
1135890674
121b030326
131131a347
1491b51b8
15607c76c
hex418e4ce

68740302 has 32 divisors (see below), whose sum is σ = 141724800. Its totient is φ = 22210848.

The previous prime is 68740291. The next prime is 68740303. The reversal of 68740302 is 20304786.

It is a self number, because there is not a number n which added to its sum of digits gives 68740302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68740303) 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, 92649 + ... + 93387.

It is an arithmetic number, because the mean of its divisors is an integer number (4428900).

Almost surely, 268740302 is an apocalyptic number.

68740302 is an abundant number, since it is smaller than the sum of its proper divisors (72984498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68740302 is a wasteful number, since it uses less digits than its factorization.

68740302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 68740302 is about 8290.9771438595. The cubic root of 68740302 is about 409.6413719032.

The spelling of 68740302 in words is "sixty-eight million, seven hundred forty thousand, three hundred two".

Divisors: 1 2 3 6 37 74 111 222 419 739 838 1257 1478 2217 2514 4434 15503 27343 31006 46509 54686 82029 93018 164058 309641 619282 928923 1857846 11456717 22913434 34370151 68740302