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76028978 = 243738693
BaseRepresentation
bin1001000100000…
…01110000110010
312022001200011002
410202001300302
5123430411403
611313322002
71612143554
oct442016062
9168050132
1076028978
1139a09773
1221566302
131299ca7c
14a1514d4
156a1c188
hex4881c32

76028978 has 8 divisors (see below), whose sum is σ = 114082668. Its totient is φ = 38001424.

The previous prime is 76028929. The next prime is 76028983. The reversal of 76028978 is 87982067.

It can be written as a sum of positive squares in 2 ways, for example, as 71690089 + 4338889 = 8467^2 + 2083^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4400 + ... + 13092.

Almost surely, 276028978 is an apocalyptic number.

76028978 is a deficient number, since it is larger than the sum of its proper divisors (38053690).

76028978 is a wasteful number, since it uses less digits than its factorization.

76028978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13068.

The product of its (nonzero) digits is 338688, while the sum is 47.

The square root of 76028978 is about 8719.4597309696. The cubic root of 76028978 is about 423.6361874161.

The spelling of 76028978 in words is "seventy-six million, twenty-eight thousand, nine hundred seventy-eight".

Divisors: 1 2 4373 8693 8746 17386 38014489 76028978