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71880484 = 22134729411
BaseRepresentation
bin1000100100011…
…00111100100100
312000020220111011
410102030330210
5121400133414
611044352004
71531655044
oct422147444
9160226434
1071880484
1137635965
12200a5604
1311b79740
149791724
15649cdc4
hex448cf24

71880484 has 24 divisors (see below), whose sum is σ = 138354048. Its totient is φ = 32468640.

The previous prime is 71880469. The next prime is 71880491. The reversal of 71880484 is 48408817.

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, 12262 + ... + 17149.

It is an arithmetic number, because the mean of its divisors is an integer number (5764752).

Almost surely, 271880484 is an apocalyptic number.

It is an amenable number.

71880484 is a deficient number, since it is larger than the sum of its proper divisors (66473564).

71880484 is a wasteful number, since it uses less digits than its factorization.

71880484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29475 (or 29473 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 40.

The square root of 71880484 is about 8478.2359014125. The cubic root of 71880484 is about 415.7864488872.

The spelling of 71880484 in words is "seventy-one million, eight hundred eighty thousand, four hundred eighty-four".

Divisors: 1 2 4 13 26 47 52 94 188 611 1222 2444 29411 58822 117644 382343 764686 1382317 1529372 2764634 5529268 17970121 35940242 71880484