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30104938 = 215052469
BaseRepresentation
bin111001011010…
…1110101101010
32002122111012201
41302311311222
530201324223
62553130414
7513613333
oct162656552
962574181
1030104938
1115aa2316
12a0b9a0a
136310996
143dd928a
152999ead
hex1cb5d6a

30104938 has 4 divisors (see below), whose sum is σ = 45157410. Its totient is φ = 15052468.

The previous prime is 30104933. The next prime is 30104989. The reversal of 30104938 is 83940103.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 17665209 + 12439729 = 4203^2 + 3527^2 .

It is not an unprimeable number, because it can be changed into a prime (30104933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7526233 + ... + 7526236.

Almost surely, 230104938 is an apocalyptic number.

30104938 is a deficient number, since it is larger than the sum of its proper divisors (15052472).

30104938 is a wasteful number, since it uses less digits than its factorization.

30104938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15052471.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 30104938 is about 5486.7966975276. The cubic root of 30104938 is about 311.0851253901.

The spelling of 30104938 in words is "thirty million, one hundred four thousand, nine hundred thirty-eight".

Divisors: 1 2 15052469 30104938