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76306231 = 761100271
BaseRepresentation
bin1001000110001…
…01011100110111
312022120202110201
410203011130313
5124013244411
611323301331
71614410101
oct443053467
9168522421
1076306231
113a089001
122167a847
1312a69021
14a1c4571
156a743c1
hex48c5737

76306231 has 4 divisors (see below), whose sum is σ = 76407264. Its totient is φ = 76205200.

The previous prime is 76306229. The next prime is 76306267. The reversal of 76306231 is 13260367.

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 76306231 - 21 = 76306229 is a prime.

It is a super-2 number, since 2×763062312 = 11645281778850722, which contains 22 as substring.

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 76306231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76306201) 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, 49375 + ... + 50896.

It is an arithmetic number, because the mean of its divisors is an integer number (19101816).

Almost surely, 276306231 is an apocalyptic number.

76306231 is a deficient number, since it is larger than the sum of its proper divisors (101033).

76306231 is a wasteful number, since it uses less digits than its factorization.

76306231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101032.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 76306231 is about 8735.3437825881. The cubic root of 76306231 is about 424.1505172712.

Adding to 76306231 its reverse (13260367), we get a palindrome (89566598).

It can be divided in two parts, 7630 and 6231, that added together give a triangular number (13861 = T166).

The spelling of 76306231 in words is "seventy-six million, three hundred six thousand, two hundred thirty-one".

Divisors: 1 761 100271 76306231