Search a number
-
+
30929109120 = 2733571321789
BaseRepresentation
bin11100110011100001…
…001100000010000000
32221211111120112111000
4130303201030002000
51001320322442440
622113022052000
72143311042540
oct346341140200
987744515430
1030929109120
1112131748508
125bb211a000
132bbba11100
1416d59c1320
15c104a5730
hex73384c080

30929109120 has 1536 divisors, whose sum is σ = 145146816000. Its totient is φ = 6072827904.

The previous prime is 30929109119. The next prime is 30929109121. The reversal of 30929109120 is 2190192903.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30929109119) and next prime (30929109121).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (30929109121) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 347518036 + ... + 347518124.

It is an arithmetic number, because the mean of its divisors is an integer number (94496625).

Almost surely, 230929109120 is an apocalyptic number.

30929109120 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 30929109120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72573408000).

30929109120 is an abundant number, since it is smaller than the sum of its proper divisors (114217706880).

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

30929109120 is a wasteful number, since it uses less digits than its factorization.

30929109120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The spelling of 30929109120 in words is "thirty billion, nine hundred twenty-nine million, one hundred nine thousand, one hundred twenty".