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229628949 = 31161114073
BaseRepresentation
bin11011010111111…
…01110000010101
3121000002100200220
431223331300111
5432241111244
634441424553
75455546104
oct1553756025
9530070626
10229628949
1110868a6a0
1264a9b159
133875c424
14226d603b
151525d319
hexdafdc15

229628949 has 16 divisors (see below), whose sum is σ = 339484224. Its totient is φ = 136886400.

The previous prime is 229628947. The next prime is 229628953. The reversal of 229628949 is 949826922.

It is not a de Polignac number, because 229628949 - 21 = 229628947 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229628947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55024 + ... + 59049.

It is an arithmetic number, because the mean of its divisors is an integer number (21217764).

Almost surely, 2229628949 is an apocalyptic number.

It is an amenable number.

229628949 is a deficient number, since it is larger than the sum of its proper divisors (109855275).

229628949 is a wasteful number, since it uses less digits than its factorization.

229628949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114148.

The product of its digits is 1119744, while the sum is 51.

The square root of 229628949 is about 15153.5127610729. The cubic root of 229628949 is about 612.3629116491.

The spelling of 229628949 in words is "two hundred twenty-nine million, six hundred twenty-eight thousand, nine hundred forty-nine".

Divisors: 1 3 11 33 61 183 671 2013 114073 342219 1254803 3764409 6958453 20875359 76542983 229628949