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68162454 = 2323786803
BaseRepresentation
bin1000001000000…
…01001110010110
311202021000022100
410010001032112
5114422144304
610432542530
71455241233
oct404011626
9152230270
1068162454
1135526508
121a9b1a46
1311177319
1490a478a
155eb6439
hex4101396

68162454 has 12 divisors (see below), whose sum is σ = 147685356. Its totient is φ = 22720812.

The previous prime is 68162453. The next prime is 68162461. The reversal of 68162454 is 45426186.

It is a super-2 number, since 2×681624542 = 9292240270604232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68162453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1893384 + ... + 1893419.

It is an arithmetic number, because the mean of its divisors is an integer number (12307113).

Almost surely, 268162454 is an apocalyptic number.

68162454 is an abundant number, since it is smaller than the sum of its proper divisors (79522902).

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

68162454 is a wasteful number, since it uses less digits than its factorization.

68162454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3786811 (or 3786808 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 68162454 is about 8256.0555957430. The cubic root of 68162454 is about 408.4902914944.

The spelling of 68162454 in words is "sixty-eight million, one hundred sixty-two thousand, four hundred fifty-four".

Divisors: 1 2 3 6 9 18 3786803 7573606 11360409 22720818 34081227 68162454