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68770454 = 234385227
BaseRepresentation
bin1000001100101…
…01101010010110
311210101220022212
410012111222112
5120101123304
610453553422
71463352644
oct406255226
9153356285
1068770454
1135901295
121b045872
131132ac9c
1491c2194
15608666e
hex4195a96

68770454 has 4 divisors (see below), whose sum is σ = 103155684. Its totient is φ = 34385226.

The previous prime is 68770451. The next prime is 68770463. The reversal of 68770454 is 45407786.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×687704542 = 9458750686732232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68770451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17192612 + ... + 17192615.

It is an arithmetic number, because the mean of its divisors is an integer number (25788921).

Almost surely, 268770454 is an apocalyptic number.

68770454 is a deficient number, since it is larger than the sum of its proper divisors (34385230).

68770454 is a wasteful number, since it uses less digits than its factorization.

68770454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34385229.

The product of its (nonzero) digits is 188160, while the sum is 41.

The square root of 68770454 is about 8292.7953067708. The cubic root of 68770454 is about 409.7012576897.

The spelling of 68770454 in words is "sixty-eight million, seven hundred seventy thousand, four hundred fifty-four".

Divisors: 1 2 34385227 68770454