[go: up one dir, main page]

Search a number
-
+
61043217 = 320347739
BaseRepresentation
bin1110100011011…
…1001000010001
311020212022112220
43220313020101
5111111340332
610020211253
71340600364
oct350671021
9136768486
1061043217
1131503744
1218539b29
13c853a61
1481700db
15555bd2c
hex3a37211

61043217 has 4 divisors (see below), whose sum is σ = 81390960. Its totient is φ = 40695476.

The previous prime is 61043207. The next prime is 61043233. The reversal of 61043217 is 71234016.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-61043217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61043207) 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, 10173867 + ... + 10173872.

It is an arithmetic number, because the mean of its divisors is an integer number (20347740).

Almost surely, 261043217 is an apocalyptic number.

It is an amenable number.

61043217 is a deficient number, since it is larger than the sum of its proper divisors (20347743).

61043217 is a wasteful number, since it uses less digits than its factorization.

61043217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20347742.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 61043217 is about 7813.0158709681. The cubic root of 61043217 is about 393.7426600799.

The spelling of 61043217 in words is "sixty-one million, forty-three thousand, two hundred seventeen".

Divisors: 1 3 20347739 61043217