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54252690 = 23511171619
BaseRepresentation
bin1100111011110…
…1010010010010
310210002022200220
43032331102102
5102342041230
65214453510
71226066052
oct316752222
9123068626
1054252690
1128695938
1216204296
13b316cab
1472c3562
154b69d10
hex33bd492

54252690 has 32 divisors (see below), whose sum is σ = 130403520. Its totient is φ = 14445504.

The previous prime is 54252689. The next prime is 54252691. The reversal of 54252690 is 9625245.

It is an interprime number because it is at equal distance from previous prime (54252689) and next prime (54252691).

It is a super-2 number, since 2×542526902 = 5886708744472200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54252691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32701 + ... + 34319.

It is an arithmetic number, because the mean of its divisors is an integer number (4075110).

Almost surely, 254252690 is an apocalyptic number.

54252690 is an abundant number, since it is smaller than the sum of its proper divisors (76150830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54252690 is a wasteful number, since it uses less digits than its factorization.

54252690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2746.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 54252690 is about 7365.6425381633. The cubic root of 54252690 is about 378.5649707827.

The spelling of 54252690 in words is "fifty-four million, two hundred fifty-two thousand, six hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 1117 1619 2234 3238 3351 4857 5585 6702 8095 9714 11170 16190 16755 24285 33510 48570 1808423 3616846 5425269 9042115 10850538 18084230 27126345 54252690