Search a number
-
+
30500442452405 = 530781012452783
BaseRepresentation
bin1101110111101011100000…
…00010011011000110110101
310222222210222021110101022202
412323311300002123012311
512444204401231434110
6144511413153434245
76265404253141352
oct673656002330665
9128883867411282
1030500442452405
11979a18a68a5a2
12350723456b985
131403244143483
1477632d265629
1537d5be6a90a5
hex1bbd7009b1b5

30500442452405 has 16 divisors (see below), whose sum is σ = 36724298628864. Its totient is φ = 24317861860800.

The previous prime is 30500442452329. The next prime is 30500442452411. The reversal of 30500442452405 is 50425424400503.

It is not a de Polignac number, because 30500442452405 - 218 = 30500442190261 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11208644 + ... + 13661426.

It is an arithmetic number, because the mean of its divisors is an integer number (2295268664304).

Almost surely, 230500442452405 is an apocalyptic number.

It is an amenable number.

30500442452405 is a deficient number, since it is larger than the sum of its proper divisors (6223856176459).

30500442452405 is a wasteful number, since it uses less digits than its factorization.

30500442452405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2461196.

The product of its (nonzero) digits is 384000, while the sum is 38.

Adding to 30500442452405 its reverse (50425424400503), we get a palindrome (80925866852908).

The spelling of 30500442452405 in words is "thirty trillion, five hundred billion, four hundred forty-two million, four hundred fifty-two thousand, four hundred five".

Divisors: 1 5 307 1535 8101 40505 2452783 2487007 12263915 12435035 753004381 3765021905 19869995083 99349975415 6100088490481 30500442452405