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30868370 = 2513367647
BaseRepresentation
bin111010111000…
…0001110010010
32011002021102222
41311300032102
530400241440
63021341042
7523243151
oct165601622
964067388
1030868370
1116473955
12a407782
13651a310
144157598
152a9b2b5
hex1d70392

30868370 has 32 divisors (see below), whose sum is σ = 60092928. Its totient is φ = 11348928.

The previous prime is 30868351. The next prime is 30868391. The reversal of 30868370 is 7386803.

It is a self number, because there is not a number n which added to its sum of digits gives 30868370.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47387 + ... + 48033.

It is an arithmetic number, because the mean of its divisors is an integer number (1877904).

Almost surely, 230868370 is an apocalyptic number.

30868370 is a deficient number, since it is larger than the sum of its proper divisors (29224558).

30868370 is a wasteful number, since it uses less digits than its factorization.

30868370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 30868370 is about 5555.9310650871. The cubic root of 30868370 is about 313.6928108544.

The spelling of 30868370 in words is "thirty million, eight hundred sixty-eight thousand, three hundred seventy".

Divisors: 1 2 5 10 13 26 65 130 367 647 734 1294 1835 3235 3670 4771 6470 8411 9542 16822 23855 42055 47710 84110 237449 474898 1187245 2374490 3086837 6173674 15434185 30868370