Search a number
-
+
29973028 = 2247159431
BaseRepresentation
bin111001001010…
…1101000100100
32002101210021011
41302111220210
530133114103
62550232004
7512523631
oct162255044
962353234
1029973028
1115a121a8
12a055604
136295927
143da3188
152970d6d
hex1c95a24

29973028 has 12 divisors (see below), whose sum is σ = 53569152. Its totient is φ = 14667560.

The previous prime is 29973019. The next prime is 29973029. The reversal of 29973028 is 82037992.

It is not an unprimeable number, because it can be changed into a prime (29973029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79528 + ... + 79903.

It is an arithmetic number, because the mean of its divisors is an integer number (4464096).

Almost surely, 229973028 is an apocalyptic number.

It is an amenable number.

29973028 is a deficient number, since it is larger than the sum of its proper divisors (23596124).

29973028 is a wasteful number, since it uses less digits than its factorization.

29973028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159482 (or 159480 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 29973028 is about 5474.7628259131. The cubic root of 29973028 is about 310.6301023686.

The spelling of 29973028 in words is "twenty-nine million, nine hundred seventy-three thousand, twenty-eight".

Divisors: 1 2 4 47 94 188 159431 318862 637724 7493257 14986514 29973028