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76742061 = 3112325517
BaseRepresentation
bin1001001001011…
…11110110101101
312100101220022120
410210233312231
5124121221221
611340503153
71621203534
oct444576655
9170356276
1076742061
113a3564a0
122184aab9
1312b8c506
14a29931b
156b0d5c6
hex492fdad

76742061 has 8 divisors (see below), whose sum is σ = 111624864. Its totient is φ = 46510320.

The previous prime is 76742059. The next prime is 76742069. The reversal of 76742061 is 16024767.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 76742061 - 21 = 76742059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 2325517 = 76742061 / (7 + 6 + 7 + 4 + 2 + 0 + 6 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76742069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1162726 + ... + 1162791.

It is an arithmetic number, because the mean of its divisors is an integer number (13953108).

Almost surely, 276742061 is an apocalyptic number.

It is an amenable number.

76742061 is a deficient number, since it is larger than the sum of its proper divisors (34882803).

76742061 is a wasteful number, since it uses less digits than its factorization.

76742061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2325531.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 76742061 is about 8760.2546195873. The cubic root of 76742061 is about 424.9565095059.

The spelling of 76742061 in words is "seventy-six million, seven hundred forty-two thousand, sixty-one".

Divisors: 1 3 11 33 2325517 6976551 25580687 76742061