Search a number
-
+
61010005 = 571743143
BaseRepresentation
bin1110100010111…
…1000001010101
311020210121222211
43220233001111
5111104310010
610015353421
71340401510
oct350570125
9136717884
1061010005
11314907a1
1218522871
13c8418c4
148161d77
15555208a
hex3a2f055

61010005 has 8 divisors (see below), whose sum is σ = 83670912. Its totient is φ = 41835408.

The previous prime is 61009979. The next prime is 61010021. The reversal of 61010005 is 50001016.

61010005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 61010005 - 215 = 60977237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 871537 + ... + 871606.

It is an arithmetic number, because the mean of its divisors is an integer number (10458864).

Almost surely, 261010005 is an apocalyptic number.

It is an amenable number.

61010005 is a deficient number, since it is larger than the sum of its proper divisors (22660907).

61010005 is a wasteful number, since it uses less digits than its factorization.

61010005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743155.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 61010005 is about 7810.8901541374. The cubic root of 61010005 is about 393.6712388027.

The spelling of 61010005 in words is "sixty-one million, ten thousand, five".

Divisors: 1 5 7 35 1743143 8715715 12202001 61010005