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54489261 = 3167108761
BaseRepresentation
bin1100111111011…
…1000010101101
310210112100012210
43033313002231
5102422124021
65223521033
71231102551
oct317670255
9123470183
1054489261
1128837652
12162b9179
13b39a888
147345861
154bb4e76
hex33f70ad

54489261 has 8 divisors (see below), whose sum is σ = 73088064. Its totient is φ = 36108320.

The previous prime is 54489257. The next prime is 54489263. The reversal of 54489261 is 16298445.

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 54489261 - 22 = 54489257 is a prime.

It is a super-2 number, since 2×544892612 = 5938159128652242, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54489263) 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, 53880 + ... + 54881.

It is an arithmetic number, because the mean of its divisors is an integer number (9136008).

Almost surely, 254489261 is an apocalyptic number.

It is an amenable number.

54489261 is a deficient number, since it is larger than the sum of its proper divisors (18598803).

54489261 is a wasteful number, since it uses less digits than its factorization.

54489261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108931.

The product of its digits is 69120, while the sum is 39.

The square root of 54489261 is about 7381.6841574264. The cubic root of 54489261 is about 379.1144220950.

The spelling of 54489261 in words is "fifty-four million, four hundred eighty-nine thousand, two hundred sixty-one".

Divisors: 1 3 167 501 108761 326283 18163087 54489261