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229831530 = 23561125591
BaseRepresentation
bin11011011001011…
…11001101101010
3121000110122120220
431230233031222
5432314102110
634450030510
75460351525
oct1554571552
9530418526
10229831530
11108808915
1264b78436
13388006b6
1422749bbc
151529d370
hexdb2f36a

229831530 has 32 divisors (see below), whose sum is σ = 560642688. Its totient is φ = 60283200.

The previous prime is 229831529. The next prime is 229831573. The reversal of 229831530 is 35138922.

229831530 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 229831491 and 229831500.

It is an unprimeable number.

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, 60966 + ... + 64625.

It is an arithmetic number, because the mean of its divisors is an integer number (17520084).

Almost surely, 2229831530 is an apocalyptic number.

229831530 is an abundant number, since it is smaller than the sum of its proper divisors (330811158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

229831530 is a wasteful number, since it uses less digits than its factorization.

229831530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125662.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 229831530 is about 15160.1955792133. The cubic root of 229831530 is about 612.5429363209.

The spelling of 229831530 in words is "two hundred twenty-nine million, eight hundred thirty-one thousand, five hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 61 122 183 305 366 610 915 1830 125591 251182 376773 627955 753546 1255910 1883865 3767730 7661051 15322102 22983153 38305255 45966306 76610510 114915765 229831530