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68814776 = 2317539547
BaseRepresentation
bin1000001101000…
…00011110111000
311210111011010102
410012200132320
5120104033101
610454534532
71463626112
oct406403670
9153434112
1068814776
1135931618
121b067448
1311345204
1491d43b2
15609486b
hex41a07b8

68814776 has 32 divisors (see below), whose sum is σ = 139209840. Its totient is φ = 31769088.

The previous prime is 68814763. The next prime is 68814787. The reversal of 68814776 is 67741886.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 68814776.

It is a congruent 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, 2435 + ... + 11981.

Almost surely, 268814776 is an apocalyptic number.

It is an amenable number.

68814776 is an abundant number, since it is smaller than the sum of its proper divisors (70395064).

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

68814776 is a wasteful number, since it uses less digits than its factorization.

68814776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9623 (or 9619 counting only the distinct ones).

The product of its digits is 451584, while the sum is 47.

The square root of 68814776 is about 8295.4671960053. The cubic root of 68814776 is about 409.7892551674.

The spelling of 68814776 in words is "sixty-eight million, eight hundred fourteen thousand, seven hundred seventy-six".

Divisors: 1 2 4 8 17 34 53 68 106 136 212 424 901 1802 3604 7208 9547 19094 38188 76376 162299 324598 505991 649196 1011982 1298392 2023964 4047928 8601847 17203694 34407388 68814776