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1030442403 = 31720204753
BaseRepresentation
bin111101011010110…
…100110110100011
32122210221220020110
4331122310312203
54102243124103
6250125542403
734351421154
oct7532646643
92583856213
101030442403
114897266a1
12249114a03
13135638643
149abd392b
15606e6403
hex3d6b4da3

1030442403 has 8 divisors (see below), whose sum is σ = 1454742288. Its totient is φ = 646552064.

The previous prime is 1030442401. The next prime is 1030442407. The reversal of 1030442403 is 3042440301.

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

It is a cyclic number.

It is not a de Polignac number, because 1030442403 - 21 = 1030442401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1030442403.

It is not an unprimeable number, because it can be changed into a prime (1030442401) 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, 10102326 + ... + 10102427.

It is an arithmetic number, because the mean of its divisors is an integer number (181842786).

Almost surely, 21030442403 is an apocalyptic number.

1030442403 is a deficient number, since it is larger than the sum of its proper divisors (424299885).

1030442403 is a wasteful number, since it uses less digits than its factorization.

1030442403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20204773.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 1030442403 is about 32100.5047156583. The cubic root of 1030442403 is about 1010.0462034871.

Adding to 1030442403 its reverse (3042440301), we get a palindrome (4072882704).

The spelling of 1030442403 in words is "one billion, thirty million, four hundred forty-two thousand, four hundred three".

Divisors: 1 3 17 51 20204753 60614259 343480801 1030442403