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52215395 = 549121269
BaseRepresentation
bin1100011100101…
…1111001100011
310122020211001112
43013023321203
5101331343040
65103053535
71202552321
oct307137143
9118224045
1052215395
1127524221
12155a12ab
13aa828ab
146d12d11
1548b6365
hex31cbe63

52215395 has 8 divisors (see below), whose sum is σ = 62789040. Its totient is φ = 41685280.

The previous prime is 52215343. The next prime is 52215409. The reversal of 52215395 is 59351225.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-52215395 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8180 + ... + 13089.

It is an arithmetic number, because the mean of its divisors is an integer number (7848630).

Almost surely, 252215395 is an apocalyptic number.

52215395 is a deficient number, since it is larger than the sum of its proper divisors (10573645).

52215395 is a wasteful number, since it uses less digits than its factorization.

52215395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21765.

The product of its digits is 13500, while the sum is 32.

The square root of 52215395 is about 7226.0220730358. The cubic root of 52215395 is about 373.7657674284.

The spelling of 52215395 in words is "fifty-two million, two hundred fifteen thousand, three hundred ninety-five".

Divisors: 1 5 491 2455 21269 106345 10443079 52215395