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76072540 = 2256835569
BaseRepresentation
bin1001000100011…
…00011001011100
312022010212220111
410202030121130
5123433310130
611314255404
71612414555
oct442143134
9168125814
1076072540
1139a39475
1221587564
13129b684b
14a16332c
156a2a02a
hex488c65c

76072540 has 24 divisors (see below), whose sum is σ = 160014960. Its totient is φ = 30379008.

The previous prime is 76072531. The next prime is 76072573. The reversal of 76072540 is 4527067.

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, 10876 + ... + 16444.

It is an arithmetic number, because the mean of its divisors is an integer number (6667290).

Almost surely, 276072540 is an apocalyptic number.

It is an amenable number.

76072540 is an abundant number, since it is smaller than the sum of its proper divisors (83942420).

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

76072540 is a wasteful number, since it uses less digits than its factorization.

76072540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6261 (or 6259 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 76072540 is about 8721.9573491275. The cubic root of 76072540 is about 423.7170816427.

The spelling of 76072540 in words is "seventy-six million, seventy-two thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 683 1366 2732 3415 5569 6830 11138 13660 22276 27845 55690 111380 3803627 7607254 15214508 19018135 38036270 76072540