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7020312225 = 352438326227
BaseRepresentation
bin1101000100111000…
…10111011010100001
3200010020221210220220
412202130113122201
5103334144442400
63120341353253
7335653445403
oct64234273241
920106853826
107020312225
112a82868533
12143b108829
1387b598504
144a8526b73
152b14cc7a0
hex1a27176a1

7020312225 has 48 divisors (see below), whose sum is σ = 12020397312. Its totient is φ = 3612893760.

The previous prime is 7020312217. The next prime is 7020312281. The reversal of 7020312225 is 5222130207.

It is a happy number.

It is not a de Polignac number, because 7020312225 - 23 = 7020312217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7020312195 and 7020312204.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 254562 + ... + 280788.

It is an arithmetic number, because the mean of its divisors is an integer number (250424944).

Almost surely, 27020312225 is an apocalyptic number.

7020312225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7020312225 is a deficient number, since it is larger than the sum of its proper divisors (5000085087).

7020312225 is a wasteful number, since it uses less digits than its factorization.

7020312225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26366 (or 26361 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 7020312225 is about 83787.3034832844. The cubic root of 7020312225 is about 1914.7796763796.

It can be divided in two parts, 70203 and 12225, that added together give a palindrome (82428).

The spelling of 7020312225 in words is "seven billion, twenty million, three hundred twelve thousand, two hundred twenty-five".

Divisors: 1 3 5 15 25 43 75 83 129 215 249 415 645 1075 1245 2075 3225 3569 6225 10707 17845 26227 53535 78681 89225 131135 267675 393405 655675 1127761 1967025 2176841 3383283 5638805 6530523 10884205 16916415 28194025 32652615 54421025 84582075 93604163 163263075 280812489 468020815 1404062445 2340104075 7020312225