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920212011 = 32157651247
BaseRepresentation
bin110110110110010…
…101001000101011
32101010112121120100
4312312111020223
53341033241021
6231151200443
731542446565
oct6666251053
92333477510
10920212011
114324879a4
12218216123
13118852464
148a2dc335
1555bc0626
hex36d9522b

920212011 has 12 divisors (see below), whose sum is σ = 1337663392. Its totient is φ = 609566256.

The previous prime is 920211983. The next prime is 920212031. The reversal of 920212011 is 110212029.

It is not a de Polignac number, because 920212011 - 26 = 920211947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (920212031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 324211 + ... + 327036.

Almost surely, 2920212011 is an apocalyptic number.

920212011 is a deficient number, since it is larger than the sum of its proper divisors (417451381).

920212011 is a wasteful number, since it uses less digits than its factorization.

920212011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651410 (or 651407 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 920212011 is about 30334.9964727211. The cubic root of 920212011 is about 972.6635304552.

Adding to 920212011 its sum of digits (18), we get a palindrome (920212029).

The spelling of 920212011 in words is "nine hundred twenty million, two hundred twelve thousand, eleven".

Divisors: 1 3 9 157 471 1413 651247 1953741 5861223 102245779 306737337 920212011