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76142228 = 2220279391
BaseRepresentation
bin1001000100111…
…01011010010100
312022021102111112
410202131122110
5123443022403
611315554152
71613125001
oct442353224
9168242445
1076142228
1139a86868
12215bb958
1312a0c496
14a1808a8
156a409d8
hex489d694

76142228 has 12 divisors (see below), whose sum is σ = 133328832. Its totient is φ = 38048280.

The previous prime is 76142221. The next prime is 76142233. The reversal of 76142228 is 82224167.

It is a junction number, because it is equal to n+sod(n) for n = 76142194 and 76142203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76142221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3413 + ... + 12803.

It is an arithmetic number, because the mean of its divisors is an integer number (11110736).

Almost surely, 276142228 is an apocalyptic number.

It is an amenable number.

76142228 is a deficient number, since it is larger than the sum of its proper divisors (57186604).

76142228 is a wasteful number, since it uses less digits than its factorization.

76142228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11422 (or 11420 counting only the distinct ones).

The product of its digits is 10752, while the sum is 32.

The square root of 76142228 is about 8725.9514094453. The cubic root of 76142228 is about 423.8464274135.

The spelling of 76142228 in words is "seventy-six million, one hundred forty-two thousand, two hundred twenty-eight".

Divisors: 1 2 4 2027 4054 8108 9391 18782 37564 19035557 38071114 76142228