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30837308 = 2253145459
BaseRepresentation
bin111010110100…
…0101000111100
32011000200211112
41311220220330
530343243213
63020541152
7523053455
oct165505074
964020745
1030837308
1116452587
12a3b17b8
136509138
14414a12c
152a91ea8
hex1d68a3c

30837308 has 12 divisors (see below), whose sum is σ = 54983880. Its totient is φ = 15127632.

The previous prime is 30837307. The next prime is 30837341. The reversal of 30837308 is 80373803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30837307) 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, 72518 + ... + 72941.

It is an arithmetic number, because the mean of its divisors is an integer number (4581990).

Almost surely, 230837308 is an apocalyptic number.

It is an amenable number.

30837308 is a deficient number, since it is larger than the sum of its proper divisors (24146572).

30837308 is a wasteful number, since it uses less digits than its factorization.

30837308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145516 (or 145514 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 30837308 is about 5553.1349704469. The cubic root of 30837308 is about 313.5875553640.

The spelling of 30837308 in words is "thirty million, eight hundred thirty-seven thousand, three hundred eight".

Divisors: 1 2 4 53 106 212 145459 290918 581836 7709327 15418654 30837308