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1200403030 = 25472554049
BaseRepresentation
bin100011110001100…
…1011001001010110
310002122202210101111
41013203023021112
54424300344110
6315040445234
741514154201
oct10743131126
93078683344
101200403030
11566661622
1229601981a
13161905a68
14b55d6938
15705b9e8a
hex478cb256

1200403030 has 16 divisors (see below), whose sum is σ = 2206699200. Its totient is φ = 469944832.

The previous prime is 1200402991. The next prime is 1200403037. The reversal of 1200403030 is 303040021.

It is a self number, because there is not a number n which added to its sum of digits gives 1200403030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200403037) 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, 1276555 + ... + 1277494.

It is an arithmetic number, because the mean of its divisors is an integer number (137918700).

Almost surely, 21200403030 is an apocalyptic number.

1200403030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200403030 is a deficient number, since it is larger than the sum of its proper divisors (1006296170).

1200403030 is a wasteful number, since it uses less digits than its factorization.

1200403030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2554103.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 1200403030 is about 34646.8328999925. The cubic root of 1200403030 is about 1062.7775234450. Note that the first 3 decimals are identical.

Adding to 1200403030 its reverse (303040021), we get a palindrome (1503443051).

The spelling of 1200403030 in words is "one billion, two hundred million, four hundred three thousand, thirty".

Divisors: 1 2 5 10 47 94 235 470 2554049 5108098 12770245 25540490 120040303 240080606 600201515 1200403030