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47845000225 = 52112412972
BaseRepresentation
bin101100100011110010…
…001100010000100001
311120111101210211200101
4230203302030100201
51240441310001400
633551340222401
73312433535401
oct544362142041
9146441724611
1047845000225
1119322289900
12933323aa01
134686465b29
14245c448801
1513a05b656a
hexb23c8c421

47845000225 has 81 divisors (see below), whose sum is σ = 67537053003. Its totient is φ = 33597696000.

The previous prime is 47845000183. The next prime is 47845000241. The reversal of 47845000225 is 52200054874.

It is a happy number.

The square root of 47845000225 is 218735.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 47806510609 + 38489616 = 218647^2 + 6204^2 .

It is not a de Polignac number, because 47845000225 - 211 = 47844998177 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 493247377 + ... + 493247473.

Almost surely, 247845000225 is an apocalyptic number.

47845000225 is the 218735-th square number.

47845000225 is the 109368-th centered octagonal number.

It is an amenable number.

47845000225 is a deficient number, since it is larger than the sum of its proper divisors (19692052778).

47845000225 is an equidigital number, since it uses as much as digits as its factorization.

47845000225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 37.

The spelling of 47845000225 in words is "forty-seven billion, eight hundred forty-five million, two hundred twenty-five", and thus it is an aban number.

Divisors: 1 5 11 25 41 55 97 121 205 275 451 485 605 1025 1067 1681 2255 2425 3025 3977 4961 5335 8405 9409 11275 11737 18491 19885 24805 26675 42025 43747 47045 58685 92455 99425 103499 124025 163057 203401 218735 235225 293425 385769 462275 481217 517495 815285 1017005 1093675 1138489 1793627 1928845 2406085 2587475 4076425 4243459 5085025 5692445 8968135 9644225 12030425 15816529 19729897 21217295 28462225 44840675 46678049 79082645 98649485 106086475 173981819 233390245 395413225 493247425 869909095 1166951225 1913800009 4349545475 9569000045 47845000225