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22820276 = 225705069
BaseRepresentation
bin101011100001…
…1010110110100
31120221101112102
41113003112310
521320222101
62133041232
7364653263
oct127032664
946841472
1022820276
1111977236
127786218
13496002b
1430605da
15200b86b
hex15c35b4

22820276 has 6 divisors (see below), whose sum is σ = 39935490. Its totient is φ = 11410136.

The previous prime is 22820261. The next prime is 22820279. The reversal of 22820276 is 67202822.

It can be written as a sum of positive squares in only one way, i.e., 22316176 + 504100 = 4724^2 + 710^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22820279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2852531 + ... + 2852538.

It is an arithmetic number, because the mean of its divisors is an integer number (6655915).

Almost surely, 222820276 is an apocalyptic number.

It is an amenable number.

22820276 is a deficient number, since it is larger than the sum of its proper divisors (17115214).

22820276 is a wasteful number, since it uses less digits than its factorization.

22820276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5705073 (or 5705071 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 22820276 is about 4777.0572531633. The cubic root of 22820276 is about 283.6440193653.

The spelling of 22820276 in words is "twenty-two million, eight hundred twenty thousand, two hundred seventy-six".

Divisors: 1 2 4 5705069 11410138 22820276