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76457146 = 2972291721
BaseRepresentation
bin1001000111010…
…10010010111010
312022212102111011
410203222102322
5124033112041
611330424134
71615606063
oct443522272
9168772434
1076457146
113a181427
122173204a
1312abc91c
14a22356a
156aa3e81
hex48ea4ba

76457146 has 16 divisors (see below), whose sum is σ = 116441640. Its totient is φ = 37647360.

The previous prime is 76457119. The next prime is 76457149. The reversal of 76457146 is 64175467.

It can be written as a sum of positive squares in 4 ways, for example, as 76370121 + 87025 = 8739^2 + 295^2 .

It is a junction number, because it is equal to n+sod(n) for n = 76457099 and 76457108.

It is not an unprimeable number, because it can be changed into a prime (76457149) 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 7 ways as a sum of consecutive naturals, for example, 43566 + ... + 45286.

Almost surely, 276457146 is an apocalyptic number.

76457146 is a deficient number, since it is larger than the sum of its proper divisors (39984494).

76457146 is a wasteful number, since it uses less digits than its factorization.

76457146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2049.

The product of its digits is 141120, while the sum is 40.

The square root of 76457146 is about 8743.9776989652. The cubic root of 76457146 is about 424.4299550124.

The spelling of 76457146 in words is "seventy-six million, four hundred fifty-seven thousand, one hundred forty-six".

Divisors: 1 2 97 194 229 458 1721 3442 22213 44426 166937 333874 394109 788218 38228573 76457146