Search a number
-
+
61437089 = 719461933
BaseRepresentation
bin1110101001011…
…1010010100001
311021121022211202
43222113102201
5111211441324
610032450545
71344130610
oct352272241
9137538752
1061437089
113175265a
12186a9a55
13c96110c
148233877
1555d88ae
hex3a974a1

61437089 has 8 divisors (see below), whose sum is σ = 73909440. Its totient is φ = 49888656.

The previous prime is 61437059. The next prime is 61437091. The reversal of 61437089 is 98073416.

61437089 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 61437089 - 28 = 61436833 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61437029) by changing a digit.

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, 230834 + ... + 231099.

It is an arithmetic number, because the mean of its divisors is an integer number (9238680).

Almost surely, 261437089 is an apocalyptic number.

It is an amenable number.

61437089 is a deficient number, since it is larger than the sum of its proper divisors (12472351).

61437089 is a wasteful number, since it uses less digits than its factorization.

61437089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461959.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 61437089 is about 7838.1814855233. The cubic root of 61437089 is about 394.5876998992.

The spelling of 61437089 in words is "sixty-one million, four hundred thirty-seven thousand, eighty-nine".

Divisors: 1 7 19 133 461933 3233531 8776727 61437089