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245383830 = 2355100981
BaseRepresentation
bin11101010000001…
…00001010010110
3122002201210100000
432220010022112
51000304240310
640203232130
76036504516
oct1650041226
9562653300
10245383830
1111657055a
126a218646
133bab7543
1424837846
15168214c0
hexea04296

245383830 has 48 divisors (see below), whose sum is σ = 661634064. Its totient is φ = 65435040.

The previous prime is 245383823. The next prime is 245383837. The reversal of 245383830 is 38383542.

245383830 is a `hidden beast` number, since 245 + 38 + 383 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (245383823) and next prime (245383837).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245383837) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 48061 + ... + 52920.

It is an arithmetic number, because the mean of its divisors is an integer number (13784043).

Almost surely, 2245383830 is an apocalyptic number.

245383830 is an abundant number, since it is smaller than the sum of its proper divisors (416250234).

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

245383830 is a wasteful number, since it uses less digits than its factorization.

245383830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101003 (or 100991 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 245383830 is about 15664.7320436706. The cubic root of 245383830 is about 626.0590726372.

The spelling of 245383830 in words is "two hundred forty-five million, three hundred eighty-three thousand, eight hundred thirty".

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 100981 201962 302943 504905 605886 908829 1009810 1514715 1817658 2726487 3029430 4544145 5452974 8179461 9088290 13632435 16358922 24538383 27264870 40897305 49076766 81794610 122691915 245383830