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30474724 = 2272379599
BaseRepresentation
bin111010001000…
…0000111100100
32010100021110111
41310100013210
530300142344
63005102404
7520013410
oct164200744
963307414
1030474724
1116225125
12a257a04
1364100a7
144093d40
152a1e834
hex1d101e4

30474724 has 48 divisors (see below), whose sum is σ = 64512000. Its totient is φ = 12314016.

The previous prime is 30474683. The next prime is 30474751. The reversal of 30474724 is 42747403.

It is a super-3 number, since 3×304747243 (a number of 23 digits) contains 333 as substring.

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, 50577 + ... + 51175.

It is an arithmetic number, because the mean of its divisors is an integer number (1344000).

Almost surely, 230474724 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 30474724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32256000).

30474724 is an abundant number, since it is smaller than the sum of its proper divisors (34037276).

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

30474724 is a wasteful number, since it uses less digits than its factorization.

30474724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712 (or 710 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 31.

The square root of 30474724 is about 5520.3916527725. The cubic root of 30474724 is about 312.3536560644.

The spelling of 30474724 in words is "thirty million, four hundred seventy-four thousand, seven hundred twenty-four".

Divisors: 1 2 4 7 14 23 28 46 79 92 158 161 316 322 553 599 644 1106 1198 1817 2212 2396 3634 4193 7268 8386 12719 13777 16772 25438 27554 47321 50876 55108 94642 96439 189284 192878 331247 385756 662494 1088383 1324988 2176766 4353532 7618681 15237362 30474724