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76161213 = 3243196799
BaseRepresentation
bin1001000101000…
…10000010111101
312022022101112200
410202202002331
5123444124323
611320222113
71613234232
oct442420275
9168271480
1076161213
1139a9a057
122160a939
1312a1800b
14a187789
156a46443
hex48a20bd

76161213 has 12 divisors (see below), whose sum is σ = 112569600. Its totient is φ = 49593096.

The previous prime is 76161193. The next prime is 76161263. The reversal of 76161213 is 31216167.

It is not a de Polignac number, because 76161213 - 28 = 76160957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76161263) 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 11 ways as a sum of consecutive naturals, for example, 98013 + ... + 98786.

It is an arithmetic number, because the mean of its divisors is an integer number (9380800).

Almost surely, 276161213 is an apocalyptic number.

It is an amenable number.

76161213 is a deficient number, since it is larger than the sum of its proper divisors (36408387).

76161213 is a wasteful number, since it uses less digits than its factorization.

76161213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196848 (or 196845 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 76161213 is about 8727.0391886367. The cubic root of 76161213 is about 423.8816512131.

The spelling of 76161213 in words is "seventy-six million, one hundred sixty-one thousand, two hundred thirteen".

Divisors: 1 3 9 43 129 387 196799 590397 1771191 8462357 25387071 76161213