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76542241 = 194028539
BaseRepresentation
bin1001000111111…
…11000100100001
312100000202012211
410203333010201
5124043322431
611332322121
71616412136
oct443770441
9170022184
1076542241
113a22a356
1221773341
1312b1c589
14a24658d
156abe2b1
hex48ff121

76542241 has 4 divisors (see below), whose sum is σ = 80570800. Its totient is φ = 72513684.

The previous prime is 76542239. The next prime is 76542247. The reversal of 76542241 is 14224567.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 76542241 - 21 = 76542239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76542247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2014251 + ... + 2014288.

It is an arithmetic number, because the mean of its divisors is an integer number (20142700).

Almost surely, 276542241 is an apocalyptic number.

It is an amenable number.

76542241 is a deficient number, since it is larger than the sum of its proper divisors (4028559).

76542241 is a wasteful number, since it uses less digits than its factorization.

76542241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4028558.

The product of its digits is 13440, while the sum is 31.

The square root of 76542241 is about 8748.8422662659. The cubic root of 76542241 is about 424.5873568081.

The spelling of 76542241 in words is "seventy-six million, five hundred forty-two thousand, two hundred forty-one".

Divisors: 1 19 4028539 76542241