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52211955 = 3523151339
BaseRepresentation
bin1100011100101…
…1000011110011
310122020122100010
43013023003303
5101331240310
65103030003
71202536305
oct307130363
9118218303
1052211955
1127521684
121559b303
13aa81163
146d11975
1548b5320
hex31cb0f3

52211955 has 16 divisors (see below), whose sum is σ = 87171840. Its totient is φ = 26635488.

The previous prime is 52211953. The next prime is 52211963. The reversal of 52211955 is 55911225.

It is not a de Polignac number, because 52211955 - 21 = 52211953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52211953) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75325 + ... + 76014.

It is an arithmetic number, because the mean of its divisors is an integer number (5448240).

Almost surely, 252211955 is an apocalyptic number.

52211955 is a deficient number, since it is larger than the sum of its proper divisors (34959885).

52211955 is a wasteful number, since it uses less digits than its factorization.

52211955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151370.

The product of its digits is 4500, while the sum is 30.

The square root of 52211955 is about 7225.7840405038. The cubic root of 52211955 is about 373.7575592331.

The spelling of 52211955 in words is "fifty-two million, two hundred eleven thousand, nine hundred fifty-five".

Divisors: 1 3 5 15 23 69 115 345 151339 454017 756695 2270085 3480797 10442391 17403985 52211955