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61444701 = 326827189
BaseRepresentation
bin1110101001100…
…1001001011101
311021121201021200
43222121021131
5111212212301
610032550113
71344162033
oct352311135
9137551250
1061444701
113175834a
12186b2339
13c964716
148236553
1555dac86
hex3a9925d

61444701 has 6 divisors (see below), whose sum is σ = 88753470. Its totient is φ = 40963128.

The previous prime is 61444693. The next prime is 61444703. The reversal of 61444701 is 10744416.

61444701 is a `hidden beast` number, since 614 + 4 + 47 + 0 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 32832900 + 28611801 = 5730^2 + 5349^2 .

It is not a de Polignac number, because 61444701 - 23 = 61444693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61444703) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3413586 + ... + 3413603.

It is an arithmetic number, because the mean of its divisors is an integer number (14792245).

Almost surely, 261444701 is an apocalyptic number.

It is an amenable number.

61444701 is a deficient number, since it is larger than the sum of its proper divisors (27308769).

61444701 is a wasteful number, since it uses less digits than its factorization.

61444701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6827195 (or 6827192 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 61444701 is about 7838.6670422974. The cubic root of 61444701 is about 394.6039955798.

The spelling of 61444701 in words is "sixty-one million, four hundred forty-four thousand, seven hundred one".

Divisors: 1 3 9 6827189 20481567 61444701