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30021154406 = 275119987453
BaseRepresentation
bin11011111101011001…
…100111011001100110
32212111020002122202122
4123331121213121212
5442440403420111
621442545305542
72111644413335
oct337531473146
985436078678
1030021154406
1111806182711
12599a0352b2
132aa5890ab9
14164b193d1c
15baa906cdb
hex6fd667666

30021154406 has 8 divisors (see below), whose sum is σ = 45091696224. Its totient is φ = 14990589000.

The previous prime is 30021154393. The next prime is 30021154433. The reversal of 30021154406 is 60445112003.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9992225 + ... + 9995228.

It is an arithmetic number, because the mean of its divisors is an integer number (5636462028).

Almost surely, 230021154406 is an apocalyptic number.

30021154406 is a deficient number, since it is larger than the sum of its proper divisors (15070541818).

30021154406 is a wasteful number, since it uses less digits than its factorization.

30021154406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19988206.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 30021154406 its reverse (60445112003), we get a palindrome (90466266409).

The spelling of 30021154406 in words is "thirty billion, twenty-one million, one hundred fifty-four thousand, four hundred six".

Divisors: 1 2 751 1502 19987453 39974906 15010577203 30021154406