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30417056 = 252973449
BaseRepresentation
bin111010000001…
…0000010100000
32010020100100122
41310002002200
530241321211
63003535412
7516353315
oct164020240
963210318
1030417056
111619586a
12a22a568
1363bca77
14407ad0c
152a0c6db
hex1d020a0

30417056 has 48 divisors (see below), whose sum is σ = 62937000. Its totient is φ = 14450688.

The previous prime is 30417047. The next prime is 30417061. The reversal of 30417056 is 65071403.

It can be written as a sum of positive squares in 4 ways, for example, as 27920656 + 2496400 = 5284^2 + 1580^2 .

It is a super-3 number, since 3×304170563 (a number of 23 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67520 + ... + 67968.

Almost surely, 230417056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30417056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31468500).

30417056 is an abundant number, since it is smaller than the sum of its proper divisors (32519944).

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

30417056 is a wasteful number, since it uses less digits than its factorization.

30417056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561 (or 553 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 30417056 is about 5515.1659993150. The cubic root of 30417056 is about 312.1565070587.

Adding to 30417056 its reverse (65071403), we get a palindrome (95488459).

The spelling of 30417056 in words is "thirty million, four hundred seventeen thousand, fifty-six".

Divisors: 1 2 4 8 16 29 32 58 73 116 146 232 292 449 464 584 898 928 1168 1796 2117 2336 3592 4234 7184 8468 13021 14368 16936 26042 32777 33872 52084 65554 67744 104168 131108 208336 262216 416672 524432 950533 1048864 1901066 3802132 7604264 15208528 30417056