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76056121 = 431768747
BaseRepresentation
bin1001000100010…
…00011000111001
312022010001101101
410202020120321
5123432243441
611314051401
71612315651
oct442103071
9168101341
1076056121
1139a280a9
1221579b61
13129ac22b
14a15b361
156a25231
hex4888639

76056121 has 4 divisors (see below), whose sum is σ = 77824912. Its totient is φ = 74287332.

The previous prime is 76056103. The next prime is 76056139. The reversal of 76056121 is 12165067.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12165067 = 29341519.

It is an interprime number because it is at equal distance from previous prime (76056103) and next prime (76056139).

It is a cyclic number.

It is not a de Polignac number, because 76056121 - 217 = 75925049 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 76056121.

It is not an unprimeable number, because it can be changed into a prime (76056161) 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, 884331 + ... + 884416.

It is an arithmetic number, because the mean of its divisors is an integer number (19456228).

Almost surely, 276056121 is an apocalyptic number.

It is an amenable number.

76056121 is a deficient number, since it is larger than the sum of its proper divisors (1768791).

76056121 is a wasteful number, since it uses less digits than its factorization.

76056121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1768790.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 76056121 is about 8721.0160531901. The cubic root of 76056121 is about 423.6865953405.

The spelling of 76056121 in words is "seventy-six million, fifty-six thousand, one hundred twenty-one".

Divisors: 1 43 1768747 76056121