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229817117620 = 22511490855881
BaseRepresentation
bin1101011000001000101…
…0101110101110110100
3210222012100110012102001
43112002022232232310
512231131140230440
6253324310225044
722414040161036
oct3260212565664
9728170405361
10229817117620
1189512853a72
1238659355184
131889684143c
14b1a2121c56
155ea0ec5b9a
hex35822aebb4

229817117620 has 12 divisors (see below), whose sum is σ = 482615947044. Its totient is φ = 91926847040.

The previous prime is 229817117533. The next prime is 229817117641. The reversal of 229817117620 is 26711718922.

229817117620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 116730188964 + 113086928656 = 341658^2 + 336284^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5745427921 + ... + 5745427960.

It is an arithmetic number, because the mean of its divisors is an integer number (40217995587).

Almost surely, 2229817117620 is an apocalyptic number.

229817117620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229817117620 is an abundant number, since it is smaller than the sum of its proper divisors (252798829424).

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

229817117620 is a wasteful number, since it uses less digits than its factorization.

229817117620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11490855890 (or 11490855888 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 46.

The spelling of 229817117620 in words is "two hundred twenty-nine billion, eight hundred seventeen million, one hundred seventeen thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 11490855881 22981711762 45963423524 57454279405 114908558810 229817117620