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30169152 = 2633131779
BaseRepresentation
bin111001100010…
…1100001000000
32002202202022000
41303011201000
530210403102
62554344000
7514301466
oct163054100
962682260
1030169152
1116036592
12a12b000
136333c90
144014836
1529ae01c
hex1cc5840

30169152 has 224 divisors, whose sum is σ = 102412800. Its totient is φ = 8626176.

The previous prime is 30169141. The next prime is 30169189. The reversal of 30169152 is 25196103.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 381849 + ... + 381927.

It is an arithmetic number, because the mean of its divisors is an integer number (457200).

Almost surely, 230169152 is an apocalyptic number.

30169152 is a gapful number since it is divisible by the number (32) 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 30169152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51206400).

30169152 is an abundant number, since it is smaller than the sum of its proper divisors (72243648).

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

30169152 is a wasteful number, since it uses less digits than its factorization.

30169152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 30169152 is about 5492.6452643512. The cubic root of 30169152 is about 311.3061504155.

The spelling of 30169152 in words is "thirty million, one hundred sixty-nine thousand, one hundred fifty-two".