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78377468 = 2213223712
BaseRepresentation
bin1001010101111…
…11000111111100
312110110222200012
410222333013330
5130031034333
611435522352
71641124511
oct452770774
9173428605
1078377468
1140273174
12222b93b8
1313312a00
14a5a3308
156d32e48
hex4abf1fc

78377468 has 54 divisors (see below), whose sum is σ = 157194072. Its totient is φ = 34114080.

The previous prime is 78377461. The next prime is 78377479. The reversal of 78377468 is 86477387.

78377468 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×783774682 = 12286054980182048, which contains 22 as substring.

78377468 is strictly pandigital in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78377461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1103873 + ... + 1103943.

Almost surely, 278377468 is an apocalyptic number.

It is an amenable number.

78377468 is an abundant number, since it is smaller than the sum of its proper divisors (78816604).

78377468 is a wasteful number, since it uses less digits than its factorization.

78377468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195 (or 109 counting only the distinct ones).

The product of its digits is 1580544, while the sum is 50.

The square root of 78377468 is about 8853.1049920353. The cubic root of 78377468 is about 427.9539866684.

The spelling of 78377468 in words is "seventy-eight million, three hundred seventy-seven thousand, four hundred sixty-eight".

Divisors: 1 2 4 13 23 26 46 52 71 92 142 169 284 299 338 598 676 923 1196 1633 1846 3266 3692 3887 5041 6532 7774 10082 11999 15548 20164 21229 23998 42458 47996 65533 84916 115943 131066 231886 262132 275977 463772 551954 851929 1103908 1507259 1703858 3014518 3407716 6029036 19594367 39188734 78377468