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30669552 = 2432373571
BaseRepresentation
bin111010011111…
…1101011110000
32010201011201100
41310333223300
530322411202
63013204400
7521454414
oct164775360
963634640
1030669552
1116348541
12a330700
13647a984
144104d44
152a5c41c
hex1d3faf0

30669552 has 60 divisors (see below), whose sum is σ = 86212984. Its totient is φ = 10177920.

The previous prime is 30669539. The next prime is 30669601. The reversal of 30669552 is 25596603.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53427 + ... + 53997.

Almost surely, 230669552 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 30669552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43106492).

30669552 is an abundant number, since it is smaller than the sum of its proper divisors (55543432).

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

30669552 is a wasteful number, since it uses less digits than its factorization.

30669552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958 (or 949 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The square root of 30669552 is about 5538.0097508040. The cubic root of 30669552 is about 313.0178787842.

The spelling of 30669552 in words is "thirty million, six hundred sixty-nine thousand, five hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 373 571 746 1119 1142 1492 1713 2238 2284 2984 3357 3426 4476 4568 5139 5968 6714 6852 8952 9136 10278 13428 13704 17904 20556 26856 27408 41112 53712 82224 212983 425966 638949 851932 1277898 1703864 1916847 2555796 3407728 3833694 5111592 7667388 10223184 15334776 30669552