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52390101 = 347371561
BaseRepresentation
bin1100011111011…
…0100011010101
310122120200201010
43013312203111
5101402440401
65110522433
71204210551
oct307664325
9118520633
1052390101
1127633505
1215666419
13ab1427a
146d5a861
1548eced6
hex31f68d5

52390101 has 8 divisors (see below), whose sum is σ = 71339904. Its totient is φ = 34183520.

The previous prime is 52390097. The next prime is 52390103. The reversal of 52390101 is 10109325.

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 52390101 - 22 = 52390097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52390103) 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, 185640 + ... + 185921.

It is an arithmetic number, because the mean of its divisors is an integer number (8917488).

Almost surely, 252390101 is an apocalyptic number.

It is an amenable number.

52390101 is a deficient number, since it is larger than the sum of its proper divisors (18949803).

52390101 is a wasteful number, since it uses less digits than its factorization.

52390101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371611.

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 52390101 is about 7238.1006486509. The cubic root of 52390101 is about 374.1821607784.

Adding to 52390101 its reverse (10109325), we get a palindrome (62499426).

The spelling of 52390101 in words is "fifty-two million, three hundred ninety thousand, one hundred one".

Divisors: 1 3 47 141 371561 1114683 17463367 52390101