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152220425 = 5276071433
BaseRepresentation
bin10010001001010…
…11001100001001
3101121102121011112
421010223030021
5302432023200
623034340105
73525565220
oct1104531411
9347377145
10152220425
1178a19505
1242b8a635
13256c8776
1416305cb7
15d56c535
hex912b309

152220425 has 24 divisors (see below), whose sum is σ = 216224256. Its totient is φ = 104135040.

The previous prime is 152220421. The next prime is 152220443. The reversal of 152220425 is 524022251.

It is not a de Polignac number, because 152220425 - 22 = 152220421 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 152220425.

It is not an unprimeable number, because it can be changed into a prime (152220421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105509 + ... + 106941.

It is an arithmetic number, because the mean of its divisors is an integer number (9009344).

Almost surely, 2152220425 is an apocalyptic number.

It is an amenable number.

152220425 is a deficient number, since it is larger than the sum of its proper divisors (64003831).

152220425 is a wasteful number, since it uses less digits than its factorization.

152220425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2057 (or 2052 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 152220425 is about 12337.7641815687. The cubic root of 152220425 is about 533.9381798943.

Adding to 152220425 its reverse (524022251), we get a palindrome (676242676).

The spelling of 152220425 in words is "one hundred fifty-two million, two hundred twenty thousand, four hundred twenty-five".

Divisors: 1 5 7 25 35 175 607 1433 3035 4249 7165 10031 15175 21245 35825 50155 106225 250775 869831 4349155 6088817 21745775 30444085 152220425