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30029997 = 359169661
BaseRepresentation
bin111001010001…
…1100010101101
32002111200102010
41302203202231
530141424442
62551351433
7513152004
oct162434255
962450363
1030029997
1115a50a88
12a082579
1362b583a
143db9c3b
152982b9c
hex1ca38ad

30029997 has 8 divisors (see below), whose sum is σ = 40718880. Its totient is φ = 19680560.

The previous prime is 30029969. The next prime is 30030023. The reversal of 30029997 is 79992003.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30029997 - 212 = 30025901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30029897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84654 + ... + 85007.

It is an arithmetic number, because the mean of its divisors is an integer number (5089860).

Almost surely, 230029997 is an apocalyptic number.

It is an amenable number.

30029997 is a deficient number, since it is larger than the sum of its proper divisors (10688883).

30029997 is a wasteful number, since it uses less digits than its factorization.

30029997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169723.

The product of its (nonzero) digits is 30618, while the sum is 39.

The square root of 30029997 is about 5479.9632298036. The cubic root of 30029997 is about 310.8267801561.

The spelling of 30029997 in words is "thirty million, twenty-nine thousand, nine hundred ninety-seven".

Divisors: 1 3 59 177 169661 508983 10009999 30029997