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76303231 = 471623473
BaseRepresentation
bin1001000110001…
…00101101111111
312022120121100121
410203010231333
5124013200411
611323235411
71614365254
oct443045577
9168517317
1076303231
113a086824
1221678b67
1312a67854
14a1c342b
156a73571
hex48c4b7f

76303231 has 4 divisors (see below), whose sum is σ = 77926752. Its totient is φ = 74679712.

The previous prime is 76303223. The next prime is 76303261. The reversal of 76303231 is 13230367.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 76303231 - 23 = 76303223 is a prime.

It is a super-2 number, since 2×763032312 = 11644366122078722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 76303196 and 76303205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76303261) 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, 811690 + ... + 811783.

It is an arithmetic number, because the mean of its divisors is an integer number (19481688).

Almost surely, 276303231 is an apocalyptic number.

76303231 is a deficient number, since it is larger than the sum of its proper divisors (1623521).

76303231 is a wasteful number, since it uses less digits than its factorization.

76303231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1623520.

The product of its (nonzero) digits is 2268, while the sum is 25.

The square root of 76303231 is about 8735.1720647049. The cubic root of 76303231 is about 424.1449586678.

Adding to 76303231 its reverse (13230367), we get a palindrome (89533598).

The spelling of 76303231 in words is "seventy-six million, three hundred three thousand, two hundred thirty-one".

Divisors: 1 47 1623473 76303231