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52478893 = 19232941101
BaseRepresentation
bin1100100000110…
…0001110101101
310122202012111201
43020030032231
5101413311033
65112445501
71205030455
oct310141655
9118665451
1052478893
1127694195
12156a9891
13ab457cc
146d80d65
15491947d
hex320c3ad

52478893 has 32 divisors (see below), whose sum is σ = 61689600. Its totient is φ = 44352000.

The previous prime is 52478863. The next prime is 52478911. The reversal of 52478893 is 39887425.

It is a cyclic number.

It is not a de Polignac number, because 52478893 - 25 = 52478861 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 (52478863) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 519543 + ... + 519643.

It is an arithmetic number, because the mean of its divisors is an integer number (1927800).

Almost surely, 252478893 is an apocalyptic number.

It is an amenable number.

52478893 is a deficient number, since it is larger than the sum of its proper divisors (9210707).

52478893 is a wasteful number, since it uses less digits than its factorization.

52478893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213.

The product of its digits is 483840, while the sum is 46.

The square root of 52478893 is about 7244.2317052949. The cubic root of 52478893 is about 374.3934324348.

The spelling of 52478893 in words is "fifty-two million, four hundred seventy-eight thousand, eight hundred ninety-three".

Divisors: 1 19 23 29 41 101 437 551 667 779 943 1189 1919 2323 2929 4141 12673 17917 22591 27347 44137 55651 67367 78679 95243 120089 519593 1279973 1809617 2281691 2762047 52478893