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76930397 = 438872017
BaseRepresentation
bin1001001010111…
…01110101011101
312100202110122222
410211131311131
5124143233042
611344515125
71622616605
oct445356535
9170673588
1076930397
113a474a45
122191baa5
1312c2715b
14a307c05
156b492d2
hex495dd5d

76930397 has 8 divisors (see below), whose sum is σ = 78847296. Its totient is φ = 75019392.

The previous prime is 76930367. The next prime is 76930429. The reversal of 76930397 is 79303967.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-76930397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76930307) 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, 37133 + ... + 39149.

It is an arithmetic number, because the mean of its divisors is an integer number (9855912).

Almost surely, 276930397 is an apocalyptic number.

It is an amenable number.

76930397 is a deficient number, since it is larger than the sum of its proper divisors (1916899).

76930397 is a wasteful number, since it uses less digits than its factorization.

76930397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2947.

The product of its (nonzero) digits is 214326, while the sum is 44.

The square root of 76930397 is about 8770.9974917338. The cubic root of 76930397 is about 425.3038602074.

Adding to 76930397 its sum of digits (44), we get a square (76930441 = 87712).

The spelling of 76930397 in words is "seventy-six million, nine hundred thirty thousand, three hundred ninety-seven".

Divisors: 1 43 887 2017 38141 86731 1789079 76930397