Search a number
-
+
83946131 = 731398273
BaseRepresentation
bin1010000000011…
…10101010010011
312211221220102222
411000032222103
5132442234011
612155131255
72036346623
oct500165223
9184856388
1083946131
1143426a75
1224143b2b
1314512589
14b212883
157582ddb
hex500ea93

83946131 has 8 divisors (see below), whose sum is σ = 85718640. Its totient is φ = 82190592.

The previous prime is 83946091. The next prime is 83946151. The reversal of 83946131 is 13164938.

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

It is a cyclic number.

It is not a de Polignac number, because 83946131 - 210 = 83945107 is a prime.

It is a super-2 number, since 2×839461312 = 14093905819738322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83946091 and 83946100.

It is not an unprimeable number, because it can be changed into a prime (83946151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6011 + ... + 14283.

It is an arithmetic number, because the mean of its divisors is an integer number (10714830).

Almost surely, 283946131 is an apocalyptic number.

83946131 is a deficient number, since it is larger than the sum of its proper divisors (1772509).

83946131 is a wasteful number, since it uses less digits than its factorization.

83946131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8485.

The product of its digits is 15552, while the sum is 35.

The square root of 83946131 is about 9162.2121237177. The cubic root of 83946131 is about 437.8582747958.

The spelling of 83946131 in words is "eighty-three million, nine hundred forty-six thousand, one hundred thirty-one".

Divisors: 1 73 139 8273 10147 603929 1149947 83946131