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52401290 = 2521312459
BaseRepresentation
bin1100011111100…
…1010010001010
310122121021001112
43013321102022
5101403320130
65111050322
71204255304
oct307712212
9118537045
1052401290
1127640957
12156709a2
13ab193a6
146d60974
154901495
hex31f948a

52401290 has 16 divisors (see below), whose sum is σ = 94404960. Its totient is φ = 20942160.

The previous prime is 52401281. The next prime is 52401301. The reversal of 52401290 is 9210425.

52401290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20081 + ... + 22539.

It is an arithmetic number, because the mean of its divisors is an integer number (5900310).

Almost surely, 252401290 is an apocalyptic number.

52401290 is a deficient number, since it is larger than the sum of its proper divisors (42003670).

52401290 is a wasteful number, since it uses less digits than its factorization.

52401290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4597.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 52401290 is about 7238.8735311511. The cubic root of 52401290 is about 374.2087970201.

The spelling of 52401290 in words is "fifty-two million, four hundred one thousand, two hundred ninety".

Divisors: 1 2 5 10 2131 2459 4262 4918 10655 12295 21310 24590 5240129 10480258 26200645 52401290