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30269250 = 23253111223
BaseRepresentation
bin111001101110…
…1111101000010
32002221211121100
41303131331002
530222104000
63000435230
7515166354
oct163357502
962854540
1030269250
11160a4810
12a178b16
13636a6cb
14403d0d4
1529cda00
hex1cddf42

30269250 has 96 divisors (see below), whose sum is σ = 89361792. Its totient is φ = 7332000.

The previous prime is 30269249. The next prime is 30269287. The reversal of 30269250 is 5296203.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24139 + ... + 25361.

It is an arithmetic number, because the mean of its divisors is an integer number (930852).

Almost surely, 230269250 is an apocalyptic number.

30269250 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30269250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44680896).

30269250 is an abundant number, since it is smaller than the sum of its proper divisors (59092542).

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

30269250 is a wasteful number, since it uses less digits than its factorization.

30269250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257 (or 1244 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 30269250 is about 5501.7497216795. The cubic root of 30269250 is about 311.6500637760.

The spelling of 30269250 in words is "thirty million, two hundred sixty-nine thousand, two hundred fifty".

Divisors: 1 2 3 5 6 9 10 11 15 18 22 25 30 33 45 50 55 66 75 90 99 110 125 150 165 198 225 250 275 330 375 450 495 550 750 825 990 1125 1223 1375 1650 2250 2446 2475 2750 3669 4125 4950 6115 7338 8250 11007 12230 12375 13453 18345 22014 24750 26906 30575 36690 40359 55035 61150 67265 80718 91725 110070 121077 134530 152875 183450 201795 242154 275175 305750 336325 403590 458625 550350 605385 672650 917250 1008975 1210770 1375875 1681625 2017950 2751750 3026925 3363250 5044875 6053850 10089750 15134625 30269250