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30213103310303 = 194271555211989
BaseRepresentation
bin1101101111010100010010…
…10010100101010111011111
310221222100022010011120112112
412313222021102211113133
512430002413421412203
6144131412534424235
76235552602551114
oct667521122452737
9127870263146475
1030213103310303
11969933a18a221
12347b60320207b
1313b2111362574
1476647180a90b
15375da37aa6d8
hex1b7a894a55df

30213103310303 has 4 divisors (see below), whose sum is σ = 30214658541720. Its totient is φ = 30211548078888.

The previous prime is 30213103310287. The next prime is 30213103310311. The reversal of 30213103310303 is 30301330131203.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30213103310303 - 24 = 30213103310287 is a prime.

It is a super-2 number, since 2×302131033103032 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30213103310503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 777586568 + ... + 777625421.

It is an arithmetic number, because the mean of its divisors is an integer number (7553664635430).

Almost surely, 230213103310303 is an apocalyptic number.

30213103310303 is a deficient number, since it is larger than the sum of its proper divisors (1555231417).

30213103310303 is a wasteful number, since it uses less digits than its factorization.

30213103310303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1555231416.

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 30213103310303 its reverse (30301330131203), we get a palindrome (60514433441506).

Subtracting 30213103310303 from its reverse (30301330131203), we obtain a square (88226820900 = 2970302).

The spelling of 30213103310303 in words is "thirty trillion, two hundred thirteen billion, one hundred three million, three hundred ten thousand, three hundred three".

Divisors: 1 19427 1555211989 30213103310303