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71776468 = 2223780179
BaseRepresentation
bin1000100011100…
…11100011010100
312000001121210201
410101303203110
5121333321333
611042230244
71531042561
oct421634324
9160047721
1071776468
11375747a5
1220055384
1311b412aa
149765868
15647c17d
hex44738d4

71776468 has 12 divisors (see below), whose sum is σ = 131070240. Its totient is φ = 34327832.

The previous prime is 71776451. The next prime is 71776483. The reversal of 71776468 is 86467717.

It is a super-2 number, since 2×717764682 = 10303722717110048, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389998 + ... + 390181.

It is an arithmetic number, because the mean of its divisors is an integer number (10922520).

Almost surely, 271776468 is an apocalyptic number.

It is an amenable number.

71776468 is a deficient number, since it is larger than the sum of its proper divisors (59293772).

71776468 is a wasteful number, since it uses less digits than its factorization.

71776468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780206 (or 780204 counting only the distinct ones).

The product of its digits is 395136, while the sum is 46.

The square root of 71776468 is about 8472.0993856305. The cubic root of 71776468 is about 415.5857948811.

The spelling of 71776468 in words is "seventy-one million, seven hundred seventy-six thousand, four hundred sixty-eight".

Divisors: 1 2 4 23 46 92 780179 1560358 3120716 17944117 35888234 71776468