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30838896 = 24321119469
BaseRepresentation
bin111010110100…
…1000001110000
32011000210000100
41311221001300
530343321041
63020552400
7523061214
oct165510160
964023010
1030838896
11164537a0
12a3b2700
136509a8a
14414a944
152a926b6
hex1d69070

30838896 has 60 divisors (see below), whose sum is σ = 94156920. Its totient is φ = 9344640.

The previous prime is 30838889. The next prime is 30838903. The reversal of 30838896 is 69883803.

It is an interprime number because it is at equal distance from previous prime (30838889) and next prime (30838903).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 8151 + ... + 11318.

It is an arithmetic number, because the mean of its divisors is an integer number (1569282).

Almost surely, 230838896 is an apocalyptic number.

30838896 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

30838896 is an abundant number, since it is smaller than the sum of its proper divisors (63318024).

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

30838896 is a wasteful number, since it uses less digits than its factorization.

30838896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19494 (or 19485 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 30838896 is about 5553.2779509043. The cubic root of 30838896 is about 313.5929381132.

It can be divided in two parts, 308 and 38896, that added together give a square (39204 = 1982).

The spelling of 30838896 in words is "thirty million, eight hundred thirty-eight thousand, eight hundred ninety-six".

Divisors: 1 2 3 4 6 8 9 11 12 16 18 22 24 33 36 44 48 66 72 88 99 132 144 176 198 264 396 528 792 1584 19469 38938 58407 77876 116814 155752 175221 214159 233628 311504 350442 428318 467256 642477 700884 856636 934512 1284954 1401768 1713272 1927431 2569908 2803536 3426544 3854862 5139816 7709724 10279632 15419448 30838896