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628660161305 = 51154733296277
BaseRepresentation
bin10010010010111110001…
…00001100101100011001
32020002200102000002200222
421021133010030230121
540244444000130210
61200445201005425
763263533126421
oct11113704145431
92202612002628
10628660161305
112226822a9a20
12a1a09023875
1347389579337
14225da79b481
1511546037655
hex925f10cb19

628660161305 has 32 divisors (see below), whose sum is σ = 824856877440. Its totient is φ = 456161771520.

The previous prime is 628660161277. The next prime is 628660161307. The reversal of 628660161305 is 503161066826.

It is not a de Polignac number, because 628660161305 - 228 = 628391725849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (628660161307) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 100149827 + ... + 100156103.

It is an arithmetic number, because the mean of its divisors is an integer number (25776777420).

Almost surely, 2628660161305 is an apocalyptic number.

It is an amenable number.

628660161305 is a deficient number, since it is larger than the sum of its proper divisors (196196716135).

628660161305 is a wasteful number, since it uses less digits than its factorization.

628660161305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10169.

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 628660161305 in words is "six hundred twenty-eight billion, six hundred sixty million, one hundred sixty-one thousand, three hundred five".

Divisors: 1 5 11 55 547 2735 3329 6017 6277 16645 30085 31385 36619 69047 183095 345235 1820963 3433519 9104815 17167595 20030593 20896133 37768709 100152965 104480665 188843545 229857463 1149287315 11430184751 57150923755 125732032261 628660161305