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390085227 = 35721812
BaseRepresentation
bin10111010000000…
…011101001101011
31000012000101100000
4113100003221223
51244330211402
6102412514043
712444445500
oct2720035153
91005011300
10390085227
11190213894
12aa77b923
1362a7c77c
1439b434a7
15243a5c1c
hex17403a6b

390085227 has 54 divisors (see below), whose sum is σ = 683501364. Its totient is φ = 221674320.

The previous prime is 390085217. The next prime is 390085249. The reversal of 390085227 is 722580093.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is not a de Polignac number, because 390085227 - 24 = 390085211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 390085191 and 390085200.

It is not an unprimeable number, because it can be changed into a prime (390085217) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 2155077 + ... + 2155257.

Almost surely, 2390085227 is an apocalyptic number.

390085227 is a deficient number, since it is larger than the sum of its proper divisors (293416137).

390085227 is an frugal number, since it uses more digits than its factorization.

390085227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 390085227 is about 19750.5753587079. The cubic root of 390085227 is about 730.6675741025.

The spelling of 390085227 in words is "three hundred ninety million, eighty-five thousand, two hundred twenty-seven".

Divisors: 1 3 7 9 21 27 49 63 81 147 181 189 243 441 543 567 1267 1323 1629 1701 3801 3969 4887 8869 11403 11907 14661 26607 32761 34209 43983 79821 98283 102627 229327 239463 294849 307881 687981 718389 884547 1605289 2063943 2155167 2653641 4815867 6191829 7960923 14447601 18575487 43342803 55726461 130028409 390085227