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30049516 = 2275320249
BaseRepresentation
bin111001010100…
…0010011101100
32002112200012001
41302220103230
530143041031
62552022044
7513262630
oct162502354
962480161
1030049516
1115a64712
12a091924
1362c16a3
143dc2dc0
152988861
hex1ca84ec

30049516 has 24 divisors (see below), whose sum is σ = 61236000. Its totient is φ = 12634752.

The previous prime is 30049511. The next prime is 30049531. The reversal of 30049516 is 61594003.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (30049511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8641 + ... + 11608.

It is an arithmetic number, because the mean of its divisors is an integer number (2551500).

Almost surely, 230049516 is an apocalyptic number.

It is an amenable number.

30049516 is an abundant number, since it is smaller than the sum of its proper divisors (31186484).

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

30049516 is a wasteful number, since it uses less digits than its factorization.

30049516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20313 (or 20311 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 30049516 is about 5481.7438831087. The cubic root of 30049516 is about 310.8941096545.

The spelling of 30049516 in words is "thirty million, forty-nine thousand, five hundred sixteen".

Divisors: 1 2 4 7 14 28 53 106 212 371 742 1484 20249 40498 80996 141743 283486 566972 1073197 2146394 4292788 7512379 15024758 30049516