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30705302 = 2179199431
BaseRepresentation
bin111010100100…
…0011010010110
32010202222202102
41311020122112
530330032202
63014042102
7521663555
oct165103226
963688672
1030705302
1116372391
12a349332
136491024
144113d9c
152a67d02
hex1d48696

30705302 has 16 divisors (see below), whose sum is σ = 46656000. Its totient is φ = 15154920.

The previous prime is 30705293. The next prime is 30705317. The reversal of 30705302 is 20350703.

It is a super-2 number, since 2×307053022 = 1885631141822408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71027 + ... + 71457.

It is an arithmetic number, because the mean of its divisors is an integer number (2916000).

Almost surely, 230705302 is an apocalyptic number.

30705302 is a deficient number, since it is larger than the sum of its proper divisors (15950698).

30705302 is a wasteful number, since it uses less digits than its factorization.

30705302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811.

The product of its (nonzero) digits is 630, while the sum is 20.

The square root of 30705302 is about 5541.2365046080. The cubic root of 30705302 is about 313.1394547798.

The spelling of 30705302 in words is "thirty million, seven hundred five thousand, three hundred two".

Divisors: 1 2 179 199 358 398 431 862 35621 71242 77149 85769 154298 171538 15352651 30705302