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30110115420 = 22355711174733
BaseRepresentation
bin11100000010101100…
…111110011001011100
32212201102111100100000
4130002230332121130
5443131142143140
621455444134300
72114104521030
oct340254763134
985642440300
1030110115420
1111851414410
125a03997390
132abb13ab58
141658d101c0
15bb362aa30
hex702b3e65c

30110115420 has 576 divisors, whose sum is σ = 125061221376. Its totient is φ = 5887365120.

The previous prime is 30110115383. The next prime is 30110115433. The reversal of 30110115420 is 2451101103.

30110115420 is a `hidden beast` number, since 3 + 0 + 110 + 11 + 542 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 30110115393 and 30110115402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 6359374 + ... + 6364106.

It is an arithmetic number, because the mean of its divisors is an integer number (217120176).

Almost surely, 230110115420 is an apocalyptic number.

30110115420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30110115420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62530610688).

30110115420 is an abundant number, since it is smaller than the sum of its proper divisors (94951105956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30110115420 is a wasteful number, since it uses less digits than its factorization.

30110115420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4792 (or 4778 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 30110115420 its reverse (2451101103), we get a palindrome (32561216523).

It can be divided in two parts, 30110 and 115420, that added together give a triangular number (145530 = T539).

The spelling of 30110115420 in words is "thirty billion, one hundred ten million, one hundred fifteen thousand, four hundred twenty".