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54900387521 = 710847723049
BaseRepresentation
bin110011001000010100…
…010110111011000001
312020201002202122112222
4303020110112323001
51344413444400041
641115413500425
73652324410560
oct631024267301
9166632678488
1054900387521
11213129237a1
12a782041715
13523c092305
14292b4a1bd7
151664bc174b
hexcc8516ec1

54900387521 has 8 divisors (see below), whose sum is σ = 62749171200. Its totient is φ = 47053071648.

The previous prime is 54900387499. The next prime is 54900387527. The reversal of 54900387521 is 12578300945.

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-54900387521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54900387527) 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, 285596 + ... + 437453.

It is an arithmetic number, because the mean of its divisors is an integer number (7843646400).

Almost surely, 254900387521 is an apocalyptic number.

It is an amenable number.

54900387521 is a deficient number, since it is larger than the sum of its proper divisors (7848783679).

54900387521 is a wasteful number, since it uses less digits than its factorization.

54900387521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733903.

The product of its (nonzero) digits is 302400, while the sum is 44.

The spelling of 54900387521 in words is "fifty-four billion, nine hundred million, three hundred eighty-seven thousand, five hundred twenty-one".

Divisors: 1 7 10847 75929 723049 5061343 7842912503 54900387521