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30537044 = 228299209
BaseRepresentation
bin111010001111…
…1010101010100
32010110102221122
41310133111110
530304141134
63010303112
7520363166
oct164372524
963412848
1030537044
1116267a2a
12a287a98
136432575
1440ac936
152a3302e
hex1d1f554

30537044 has 12 divisors (see below), whose sum is σ = 53510100. Its totient is φ = 15248448.

The previous prime is 30537037. The next prime is 30537071. The reversal of 30537044 is 44073503.

It can be written as a sum of positive squares in 2 ways, for example, as 10627600 + 19909444 = 3260^2 + 4462^2 .

It is a super-2 number, since 2×305370442 = 1865022112515872, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1289 + ... + 7920.

It is an arithmetic number, because the mean of its divisors is an integer number (4459175).

Almost surely, 230537044 is an apocalyptic number.

It is an amenable number.

30537044 is a deficient number, since it is larger than the sum of its proper divisors (22973056).

30537044 is a wasteful number, since it uses less digits than its factorization.

30537044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10042 (or 10040 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 30537044 is about 5526.0332970405. The cubic root of 30537044 is about 312.5664293978.

The spelling of 30537044 in words is "thirty million, five hundred thirty-seven thousand, forty-four".

Divisors: 1 2 4 829 1658 3316 9209 18418 36836 7634261 15268522 30537044