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30296972 = 2259128377
BaseRepresentation
bin111001110010…
…0101110001100
32010000020122002
41303210232030
530224000342
63001211432
7515343236
oct163445614
963006562
1030296972
1116113622
12a190b78
13637a204
144049256
1529d6d32
hex1ce4b8c

30296972 has 12 divisors (see below), whose sum is σ = 53918760. Its totient is φ = 14891616.

The previous prime is 30296953. The next prime is 30296977. The reversal of 30296972 is 27969203.

It is not an unprimeable number, because it can be changed into a prime (30296977) 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 3 ways as a sum of consecutive naturals, for example, 63953 + ... + 64424.

It is an arithmetic number, because the mean of its divisors is an integer number (4493230).

Almost surely, 230296972 is an apocalyptic number.

It is an amenable number.

30296972 is a deficient number, since it is larger than the sum of its proper divisors (23621788).

30296972 is a wasteful number, since it uses less digits than its factorization.

30296972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128440 (or 128438 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 30296972 is about 5504.2685254264. The cubic root of 30296972 is about 311.7451759983.

It can be divided in two parts, 3029 and 6972, that added together give a palindrome (10001).

The spelling of 30296972 in words is "thirty million, two hundred ninety-six thousand, nine hundred seventy-two".

Divisors: 1 2 4 59 118 236 128377 256754 513508 7574243 15148486 30296972