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76540438 = 2132226451
BaseRepresentation
bin1001000111111…
…10101000010110
312100000122202001
410203332220112
5124043243223
611332305514
71616403652
oct443765026
9170018661
1076540438
113a228a67
122177229a
1312b1b800
14a245a62
156abd9ad
hex48fea16

76540438 has 12 divisors (see below), whose sum is σ = 124322148. Its totient is φ = 35326200.

The previous prime is 76540423. The next prime is 76540507. The reversal of 76540438 is 83404567.

It is a junction number, because it is equal to n+sod(n) for n = 76540397 and 76540406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 112888 + ... + 113563.

It is an arithmetic number, because the mean of its divisors is an integer number (10360179).

Almost surely, 276540438 is an apocalyptic number.

76540438 is a deficient number, since it is larger than the sum of its proper divisors (47781710).

76540438 is a wasteful number, since it uses less digits than its factorization.

76540438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226479 (or 226466 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 76540438 is about 8748.7392234539. The cubic root of 76540438 is about 424.5840229757.

The spelling of 76540438 in words is "seventy-six million, five hundred forty thousand, four hundred thirty-eight".

Divisors: 1 2 13 26 169 338 226451 452902 2943863 5887726 38270219 76540438