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10305145305 = 3257133676857
BaseRepresentation
bin10011001100011110…
…00000100111011001
3222121011221121210100
421212033000213121
5132101104122210
64422323010013
7513241201260
oct114617004731
928534847710
1010305145305
114408a93214
121bb7209909
13c82c9a220
146da8b55d7
15404a865c0
hex2663c09d9

10305145305 has 96 divisors (see below), whose sum is σ = 22047427584. Its totient is φ = 4336063488.

The previous prime is 10305145247. The next prime is 10305145307. The reversal of 10305145305 is 50354150301.

10305145305 is a `hidden beast` number, since 10 + 305 + 1 + 45 + 305 = 666.

It is not a de Polignac number, because 10305145305 - 213 = 10305137113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10305145307) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1499437 + ... + 1506293.

It is an arithmetic number, because the mean of its divisors is an integer number (229660704).

Almost surely, 210305145305 is an apocalyptic number.

10305145305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10305145305 is an abundant number, since it is smaller than the sum of its proper divisors (11742282279).

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

10305145305 is a wasteful number, since it uses less digits than its factorization.

10305145305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7255 (or 7252 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

Adding to 10305145305 its reverse (50354150301), we get a palindrome (60659295606).

The spelling of 10305145305 in words is "ten billion, three hundred five million, one hundred forty-five thousand, three hundred five".

Divisors: 1 3 5 7 9 13 15 21 35 39 45 63 65 91 105 117 195 273 315 367 455 585 819 1101 1365 1835 2569 3303 4095 4771 5505 6857 7707 12845 14313 16515 20571 23121 23855 33397 34285 38535 42939 47999 61713 71565 89141 100191 102855 115605 143997 166985 214695 239995 267423 300573 308565 431991 445705 500955 623987 719985 802269 1337115 1502865 1871961 2159955 2516519 3119935 4011345 5615883 7549557 9359805 12582595 17615633 22648671 28079415 32714747 37747785 52846899 88078165 98144241 113243355 158540697 163573735 229003229 264234495 294432723 490721205 687009687 792703485 1145016145 1472163615 2061029061 3435048435 10305145305