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52002215 = 510400443
BaseRepresentation
bin1100011001011…
…1110110100111
310121211222121222
43012113312213
5101303032330
65054330555
71201003646
oct306276647
9117758558
1052002215
1127399041
12154b9a5b
13aa09855
146c9935d
1548730e5
hex3197da7

52002215 has 4 divisors (see below), whose sum is σ = 62402664. Its totient is φ = 41601768.

The previous prime is 52002199. The next prime is 52002217. The reversal of 52002215 is 51220025.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52002215 - 24 = 52002199 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52002193 and 52002202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52002217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5200217 + ... + 5200226.

It is an arithmetic number, because the mean of its divisors is an integer number (15600666).

Almost surely, 252002215 is an apocalyptic number.

52002215 is a deficient number, since it is larger than the sum of its proper divisors (10400449).

52002215 is a wasteful number, since it uses less digits than its factorization.

52002215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10400448.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 52002215 is about 7211.2561319093. The cubic root of 52002215 is about 373.2564152938.

The spelling of 52002215 in words is "fifty-two million, two thousand, two hundred fifteen".

Divisors: 1 5 10400443 52002215