Search a number
-
+
30965490 = 235512743
BaseRepresentation
bin111011000011…
…1111011110010
32011021012200000
41312013323302
530411343430
63023410430
7524126253
oct166077362
964235600
1030965490
111652a916
12a453a16
13655259a
144180b2a
152ab9e60
hex1d87ef2

30965490 has 48 divisors (see below), whose sum is σ = 83498688. Its totient is φ = 8256816.

The previous prime is 30965477. The next prime is 30965507. The reversal of 30965490 is 9456903.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3942 + ... + 8801.

It is an arithmetic number, because the mean of its divisors is an integer number (1739556).

Almost surely, 230965490 is an apocalyptic number.

30965490 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30965490 is an abundant number, since it is smaller than the sum of its proper divisors (52533198).

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

30965490 is a wasteful number, since it uses less digits than its factorization.

30965490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12765 (or 12753 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 30965490 is about 5564.6644103665. The cubic root of 30965490 is about 314.0214530895.

The spelling of 30965490 in words is "thirty million, nine hundred sixty-five thousand, four hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 243 270 405 486 810 1215 2430 12743 25486 38229 63715 76458 114687 127430 191145 229374 344061 382290 573435 688122 1032183 1146870 1720305 2064366 3096549 3440610 5160915 6193098 10321830 15482745 30965490