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30000976 = 241875061
BaseRepresentation
bin111001001110…
…0011101010000
32002110012121021
41302130131100
530140012401
62551005224
7513001255
oct162343520
962405537
1030000976
1115a311a5
12a069814
1362a5575
143dad42c
1529792a1
hex1c9c750

30000976 has 10 divisors (see below), whose sum is σ = 58126922. Its totient is φ = 15000480.

The previous prime is 30000967. The next prime is 30000977. The reversal of 30000976 is 67900003.

It can be written as a sum of positive squares in only one way, i.e., 29986576 + 14400 = 5476^2 + 120^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30000976.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30000977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 937515 + ... + 937546.

Almost surely, 230000976 is an apocalyptic number.

It is an amenable number.

30000976 is a deficient number, since it is larger than the sum of its proper divisors (28125946).

30000976 is a wasteful number, since it uses less digits than its factorization.

30000976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1875069 (or 1875063 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 30000976 is about 5477.3146705297. The cubic root of 30000976 is about 310.7266201799.

Adding to 30000976 its reverse (67900003), we get a palindrome (97900979).

It can be divided in two parts, 30000 and 976, that added together give a square (30976 = 1762).

The spelling of 30000976 in words is "thirty million, nine hundred seventy-six", and thus it is an aban number.

Divisors: 1 2 4 8 16 1875061 3750122 7500244 15000488 30000976