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222445125 = 3253747601
BaseRepresentation
bin11010100001000…
…11111001000101
3120111120101100100
431100203321011
5423421221000
634023434313
75340516030
oct1520437105
9514511310
10222445125
11104623351
12625b5999
1337115646
1421786017
15147dea00
hexd423e45

222445125 has 96 divisors (see below), whose sum is σ = 468808704. Its totient is φ = 99360000.

The previous prime is 222445099. The next prime is 222445151. The reversal of 222445125 is 521544222.

It is an interprime number because it is at equal distance from previous prime (222445099) and next prime (222445151).

It is not a de Polignac number, because 222445125 - 27 = 222444997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 369825 + ... + 370425.

It is an arithmetic number, because the mean of its divisors is an integer number (4883424).

Almost surely, 2222445125 is an apocalyptic number.

222445125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

222445125 is an abundant number, since it is smaller than the sum of its proper divisors (246363579).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222445125 is a wasteful number, since it uses less digits than its factorization.

222445125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676 (or 663 counting only the distinct ones).

The product of its digits is 6400, while the sum is 27.

The square root of 222445125 is about 14914.5943625698. The cubic root of 222445125 is about 605.9093172153.

Adding to 222445125 its reverse (521544222), we get a palindrome (743989347).

The spelling of 222445125 in words is "two hundred twenty-two million, four hundred forty-five thousand, one hundred twenty-five".

Divisors: 1 3 5 7 9 15 21 25 35 45 47 63 75 105 125 141 175 225 235 315 329 375 423 525 601 705 875 987 1125 1175 1575 1645 1803 2115 2625 2961 3005 3525 4207 4935 5409 5875 7875 8225 9015 10575 12621 14805 15025 17625 21035 24675 27045 28247 37863 41125 45075 52875 63105 74025 75125 84741 105175 123375 135225 141235 189315 197729 225375 254223 315525 370125 423705 525875 593187 676125 706175 946575 988645 1271115 1577625 1779561 2118525 2965935 3530875 4732875 4943225 6355575 8897805 10592625 14829675 24716125 31777875 44489025 74148375 222445125