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76660131 = 3137383487
BaseRepresentation
bin1001001000110…
…11110110100011
312100020201221010
410210123312203
5124111111011
611335032003
71620412632
oct444336643
9170221833
1076660131
113a2aa989
122180b603
1312b61132
14a277519
156ae41a6
hex491bda3

76660131 has 16 divisors (see below), whose sum is σ = 103440384. Its totient is φ = 50497344.

The previous prime is 76660109. The next prime is 76660139. The reversal of 76660131 is 13106667.

It is not a de Polignac number, because 76660131 - 214 = 76643747 is a prime.

It is a super-2 number, since 2×766601312 = 11753551369874322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (76660139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157170 + ... + 157656.

It is an arithmetic number, because the mean of its divisors is an integer number (6465024).

Almost surely, 276660131 is an apocalyptic number.

76660131 is a deficient number, since it is larger than the sum of its proper divisors (26780253).

76660131 is a wasteful number, since it uses less digits than its factorization.

76660131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 76660131 is about 8755.5771368882. The cubic root of 76660131 is about 424.8052274760.

Adding to 76660131 its reverse (13106667), we get a palindrome (89766798).

The spelling of 76660131 in words is "seventy-six million, six hundred sixty thousand, one hundred thirty-one".

Divisors: 1 3 137 383 411 487 1149 1461 52471 66719 157413 186521 200157 559563 25553377 76660131