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30835836 = 2233285517
BaseRepresentation
bin111010110100…
…0010001111100
32011000121211000
41311220101330
530343221321
63020530300
7523046253
oct165502174
964017730
1030835836
1116451469
12a3b0990
136508575
14414979a
152a91826
hex1d6847c

30835836 has 24 divisors (see below), whose sum is σ = 79945040. Its totient is φ = 10278576.

The previous prime is 30835811. The next prime is 30835867. The reversal of 30835836 is 63853803.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 30835836.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 142651 + ... + 142866.

Almost surely, 230835836 is an apocalyptic number.

30835836 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

30835836 is an abundant number, since it is smaller than the sum of its proper divisors (49109204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30835836 is a wasteful number, since it uses less digits than its factorization.

30835836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285530 (or 285522 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 30835836 is about 5553.0024311178. The cubic root of 30835836 is about 313.5825656480.

The spelling of 30835836 in words is "thirty million, eight hundred thirty-five thousand, eight hundred thirty-six".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 285517 571034 856551 1142068 1713102 2569653 3426204 5139306 7708959 10278612 15417918 30835836