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61437061 = 712497027
BaseRepresentation
bin1110101001011…
…1010010000101
311021121022210201
43222113102011
5111211441221
610032450501
71344130540
oct352272205
9137538721
1061437061
1131752634
12186a9a31
13c9610ba
148233857
1555d8891
hex3a97485

61437061 has 8 divisors (see below), whose sum is σ = 70280000. Its totient is φ = 52610688.

The previous prime is 61437059. The next prime is 61437091. The reversal of 61437061 is 16073416.

61437061 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 61437061 - 21 = 61437059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61437041) 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, 5230 + ... + 12256.

It is an arithmetic number, because the mean of its divisors is an integer number (8785000).

Almost surely, 261437061 is an apocalyptic number.

It is an amenable number.

61437061 is a deficient number, since it is larger than the sum of its proper divisors (8842939).

61437061 is a wasteful number, since it uses less digits than its factorization.

61437061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8283.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 61437061 is about 7838.1796993945. The cubic root of 61437061 is about 394.5876399546.

It can be divided in two parts, 614 and 37061, that added together give a triangular number (37675 = T274).

The spelling of 61437061 in words is "sixty-one million, four hundred thirty-seven thousand, sixty-one".

Divisors: 1 7 1249 7027 8743 49189 8776723 61437061