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68787274 = 2594791217
BaseRepresentation
bin1000001100110…
…01110001001010
311210102202101211
410012121301022
5120102143044
610454203334
71463452663
oct406316112
9153382354
1068787274
1135912996
121b05354a
131133583a
1491c836a
15608b634
hex4199c4a

68787274 has 16 divisors (see below), whose sum is σ = 105235200. Its totient is φ = 33712384.

The previous prime is 68787263. The next prime is 68787283. The reversal of 68787274 is 47278786.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55914 + ... + 57130.

It is an arithmetic number, because the mean of its divisors is an integer number (6577200).

Almost surely, 268787274 is an apocalyptic number.

68787274 is a deficient number, since it is larger than the sum of its proper divisors (36447926).

68787274 is a wasteful number, since it uses less digits than its factorization.

68787274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1757.

The product of its digits is 1053696, while the sum is 49.

The square root of 68787274 is about 8293.8093780844. The cubic root of 68787274 is about 409.7346567877.

The spelling of 68787274 in words is "sixty-eight million, seven hundred eighty-seven thousand, two hundred seventy-four".

Divisors: 1 2 59 118 479 958 1217 2434 28261 56522 71803 143606 582943 1165886 34393637 68787274