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54372661 = 719408817
BaseRepresentation
bin1100111101101…
…0100100110101
310210022102021021
43033122210311
5102404411121
65221221141
71230105610
oct317324465
9123272237
1054372661
1128767a92
12162617b1
13b359795
147315177
154b90641
hex33da935

54372661 has 8 divisors (see below), whose sum is σ = 65410880. Its totient is φ = 44152128.

The previous prime is 54372653. The next prime is 54372673. The reversal of 54372661 is 16627345.

It is a happy number.

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 54372661 - 23 = 54372653 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 (54372631) 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, 204276 + ... + 204541.

It is an arithmetic number, because the mean of its divisors is an integer number (8176360).

Almost surely, 254372661 is an apocalyptic number.

It is an amenable number.

54372661 is a deficient number, since it is larger than the sum of its proper divisors (11038219).

54372661 is a wasteful number, since it uses less digits than its factorization.

54372661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408843.

The product of its digits is 30240, while the sum is 34.

The square root of 54372661 is about 7373.7820011172. The cubic root of 54372661 is about 378.8438103012.

The spelling of 54372661 in words is "fifty-four million, three hundred seventy-two thousand, six hundred sixty-one".

Divisors: 1 7 19 133 408817 2861719 7767523 54372661