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1200030425 = 5211171971303
BaseRepresentation
bin100011110000111…
…0000001011011001
310002122001212021022
41013201300023121
54424201433200
6315024452225
741511042656
oct10741601331
93078055238
101200030425
11566427690
12295a7a075
13161805299
14b553ac2d
1570544885
hex478702d9

1200030425 has 48 divisors (see below), whose sum is σ = 1728853632. Its totient is φ = 816614400.

The previous prime is 1200030409. The next prime is 1200030463. The reversal of 1200030425 is 5240300021.

It is not a de Polignac number, because 1200030425 - 24 = 1200030409 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

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, 920324 + ... + 921626.

It is an arithmetic number, because the mean of its divisors is an integer number (36017784).

Almost surely, 21200030425 is an apocalyptic number.

It is an amenable number.

1200030425 is a deficient number, since it is larger than the sum of its proper divisors (528823207).

1200030425 is a wasteful number, since it uses less digits than its factorization.

1200030425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1538 (or 1533 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 1200030425 is about 34641.4552956425. The cubic root of 1200030425 is about 1062.6675500475.

Adding to 1200030425 its reverse (5240300021), we get a palindrome (6440330446).

The spelling of 1200030425 in words is "one billion, two hundred million, thirty thousand, four hundred twenty-five".

Divisors: 1 5 11 17 25 55 85 187 197 275 425 935 985 1303 2167 3349 4675 4925 6515 10835 14333 16745 22151 32575 36839 54175 71665 83725 110755 184195 243661 256691 358325 553775 920975 1218305 1283455 2823601 4363747 6091525 6417275 14118005 21818735 48001217 70590025 109093675 240006085 1200030425