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1200030423 = 32693148537
BaseRepresentation
bin100011110000111…
…0000001011010111
310002122001212021020
41013201300023113
54424201433143
6315024452223
741511042654
oct10741601327
93078055236
101200030423
11566427689
12295a7a073
13161805297
14b553ac2b
1570544883
hex478702d7

1200030423 has 8 divisors (see below), whose sum is σ = 1600645488. Its totient is φ = 799717824.

The previous prime is 1200030409. The next prime is 1200030463. The reversal of 1200030423 is 3240300021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1200030423 - 24 = 1200030407 is a prime.

It is a super-2 number, since 2×12000304232 = 2880146032251117858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200030463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66190 + ... + 82347.

It is an arithmetic number, because the mean of its divisors is an integer number (200080686).

Almost surely, 21200030423 is an apocalyptic number.

1200030423 is a deficient number, since it is larger than the sum of its proper divisors (400615065).

1200030423 is a wasteful number, since it uses less digits than its factorization.

1200030423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151233.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 1200030423 is about 34641.4552667754. The cubic root of 1200030423 is about 1062.6675494572.

Adding to 1200030423 its reverse (3240300021), we get a palindrome (4440330444).

The spelling of 1200030423 in words is "one billion, two hundred million, thirty thousand, four hundred twenty-three".

Divisors: 1 3 2693 8079 148537 445611 400010141 1200030423