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30493721486 = 271849212207
BaseRepresentation
bin11100011001100100…
…010100001110001110
32220201011022112221002
4130121210110032032
5444422343041421
622001510140302
72126443233044
oct343144241616
986634275832
1030493721486
1111a28a02318
125ab0351692
132b4c75c4a7
141693c48394
15bd7151b0b
hex71991438e

30493721486 has 8 divisors (see below), whose sum is σ = 45741434400. Its totient is φ = 15246576688.

The previous prime is 30493721443. The next prime is 30493721497. The reversal of 30493721486 is 68412739403.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30493721486.

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, 37595 + ... + 249801.

It is an arithmetic number, because the mean of its divisors is an integer number (5717679300).

Almost surely, 230493721486 is an apocalyptic number.

30493721486 is a deficient number, since it is larger than the sum of its proper divisors (15247712914).

30493721486 is a wasteful number, since it uses less digits than its factorization.

30493721486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284058.

The product of its (nonzero) digits is 870912, while the sum is 47.

The spelling of 30493721486 in words is "thirty billion, four hundred ninety-three million, seven hundred twenty-one thousand, four hundred eighty-six".

Divisors: 1 2 71849 143698 212207 424414 15246860743 30493721486