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54501421 = 1323182279
BaseRepresentation
bin1100111111101…
…0000000101101
310210112221220011
43033322000231
5102423021141
65224053221
71231153162
oct317720055
9123487804
1054501421
11288457a7
1216304211
13b3a3280
14734a069
154bb8881
hex33fa02d

54501421 has 8 divisors (see below), whose sum is σ = 61246080. Its totient is φ = 48121392.

The previous prime is 54501373. The next prime is 54501449. The reversal of 54501421 is 12410545.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-54501421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54501392 and 54501401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54502421) 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, 90841 + ... + 91438.

It is an arithmetic number, because the mean of its divisors is an integer number (7655760).

Almost surely, 254501421 is an apocalyptic number.

It is an amenable number.

54501421 is a deficient number, since it is larger than the sum of its proper divisors (6744659).

54501421 is a wasteful number, since it uses less digits than its factorization.

54501421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182315.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 54501421 is about 7382.5077717534. The cubic root of 54501421 is about 379.1426214649.

Adding to 54501421 its reverse (12410545), we get a palindrome (66911966).

The spelling of 54501421 in words is "fifty-four million, five hundred one thousand, four hundred twenty-one".

Divisors: 1 13 23 299 182279 2369627 4192417 54501421