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54144661 = 1914271997
BaseRepresentation
bin1100111010001…
…0111010010101
310202212211111211
43032202322111
5102330112121
65212301421
71225136104
oct316427225
9122784454
1054144661
112862175a
1216171871
13b2a9a7c
14729603b
154b47ce1
hex33a2e95

54144661 has 8 divisors (see below), whose sum is σ = 57062880. Its totient is φ = 51233328.

The previous prime is 54144659. The next prime is 54144689. The reversal of 54144661 is 16644145.

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 54144661 - 21 = 54144659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54144161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26115 + ... + 28111.

It is an arithmetic number, because the mean of its divisors is an integer number (7132860).

Almost surely, 254144661 is an apocalyptic number.

It is an amenable number.

54144661 is a deficient number, since it is larger than the sum of its proper divisors (2918219).

54144661 is a wasteful number, since it uses less digits than its factorization.

54144661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3443.

The product of its digits is 11520, while the sum is 31.

The square root of 54144661 is about 7358.3055794116. The cubic root of 54144661 is about 378.3135352036.

The spelling of 54144661 in words is "fifty-four million, one hundred forty-four thousand, six hundred sixty-one".

Divisors: 1 19 1427 1997 27113 37943 2849719 54144661