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252030140430 = 235311240921839
BaseRepresentation
bin1110101010111000101…
…0101100000000001110
3220002112102011200020120
43222232022230000032
513112124203443210
6311440412325410
724131353563345
oct3525612540016
9802472150216
10252030140430
1197981497862
1240a18473866
131a9c685a113
14c2ac2b4b5c
156851182270
hex3aae2ac00e

252030140430 has 64 divisors (see below), whose sum is σ = 624463257600. Its totient is φ = 65031816960.

The previous prime is 252030140381. The next prime is 252030140447. The reversal of 252030140430 is 34041030252.

It is a self number, because there is not a number n which added to its sum of digits gives 252030140430.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 11529451 + ... + 11551289.

It is an arithmetic number, because the mean of its divisors is an integer number (9757238400).

Almost surely, 2252030140430 is an apocalyptic number.

252030140430 is an abundant number, since it is smaller than the sum of its proper divisors (372433117170).

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

252030140430 is a wasteful number, since it uses less digits than its factorization.

252030140430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34289.

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 252030140430 its reverse (34041030252), we get a palindrome (286071170682).

The spelling of 252030140430 in words is "two hundred fifty-two billion, thirty million, one hundred forty thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 31 62 93 155 186 310 465 930 12409 21839 24818 37227 43678 62045 65517 74454 109195 124090 131034 186135 218390 327585 372270 384679 655170 677009 769358 1154037 1354018 1923395 2031027 2308074 3385045 3846790 4062054 5770185 6770090 10155135 11540370 20310270 271000151 542000302 813000453 1355000755 1626000906 2710001510 4065002265 8130004530 8401004681 16802009362 25203014043 42005023405 50406028086 84010046810 126015070215 252030140430