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234669540 = 223573715101
BaseRepresentation
bin11011111110011…
…00010111100100
3121100120110002110
431333030113210
5440033411130
635141441020
75546441520
oct1577142744
9540513073
10234669540
11110512776
1266710170
1339805821
1423248d80
1515906ab0
hexdfcc5e4

234669540 has 96 divisors (see below), whose sum is σ = 771289344. Its totient is φ = 52185600.

The previous prime is 234669521. The next prime is 234669541. The reversal of 234669540 is 45966432.

It is not an unprimeable number, because it can be changed into a prime (234669541) 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 31 ways as a sum of consecutive naturals, for example, 7990 + ... + 23090.

It is an arithmetic number, because the mean of its divisors is an integer number (8034264).

Almost surely, 2234669540 is an apocalyptic number.

234669540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 234669540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (385644672).

234669540 is an abundant number, since it is smaller than the sum of its proper divisors (536619804).

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

234669540 is a wasteful number, since it uses less digits than its factorization.

234669540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15157 (or 15155 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 39.

The square root of 234669540 is about 15318.9275081515. The cubic root of 234669540 is about 616.8111853480.

The spelling of 234669540 in words is "two hundred thirty-four million, six hundred sixty-nine thousand, five hundred forty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 37 42 60 70 74 84 105 111 140 148 185 210 222 259 370 420 444 518 555 740 777 1036 1110 1295 1554 2220 2590 3108 3885 5180 7770 15101 15540 30202 45303 60404 75505 90606 105707 151010 181212 211414 226515 302020 317121 422828 453030 528535 558737 634242 906060 1057070 1117474 1268484 1585605 1676211 2114140 2234948 2793685 3171210 3352422 3911159 5587370 6342420 6704844 7822318 8381055 11174740 11733477 15644636 16762110 19555795 23466954 33524220 39111590 46933908 58667385 78223180 117334770 234669540