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52220270 = 256185607
BaseRepresentation
bin1100011100110…
…1000101101110
310122021001202002
43013031011232
5101332022040
65103132302
71202602454
oct307150556
9118231662
1052220270
1127527953
12155a4092
13aa84b8b
146d149d4
1548b7a15
hex31cd16e

52220270 has 16 divisors (see below), whose sum is σ = 95538528. Its totient is φ = 20545440.

The previous prime is 52220263. The next prime is 52220293. The reversal of 52220270 is 7202225.

It is a Curzon number.

It is a congruent number.

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, 42194 + ... + 43413.

It is an arithmetic number, because the mean of its divisors is an integer number (5971158).

Almost surely, 252220270 is an apocalyptic number.

52220270 is a deficient number, since it is larger than the sum of its proper divisors (43318258).

52220270 is a wasteful number, since it uses less digits than its factorization.

52220270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85675.

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 52220270 is about 7226.3593876862. The cubic root of 52220270 is about 373.7773990644. Note that the first 3 decimals are identical.

Adding to 52220270 its reverse (7202225), we get a palindrome (59422495).

The spelling of 52220270 in words is "fifty-two million, two hundred twenty thousand, two hundred seventy".

Divisors: 1 2 5 10 61 122 305 610 85607 171214 428035 856070 5222027 10444054 26110135 52220270