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385363290 = 23513988111
BaseRepresentation
bin10110111110000…
…010110101011010
3222212010111001110
4112332002311122
51242123111130
6102123401150
712356351064
oct2676026532
9885114043
10385363290
11188589164
12a90831b6
1361ab8420
1439274734
1523c71ab0
hex16f82d5a

385363290 has 32 divisors (see below), whose sum is σ = 996016896. Its totient is φ = 94858560.

The previous prime is 385363289. The next prime is 385363313. The reversal of 385363290 is 92363583.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 493666 + ... + 494445.

It is an arithmetic number, because the mean of its divisors is an integer number (31125528).

Almost surely, 2385363290 is an apocalyptic number.

385363290 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

385363290 is an abundant number, since it is smaller than the sum of its proper divisors (610653606).

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

385363290 is a wasteful number, since it uses less digits than its factorization.

385363290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988134.

The product of its (nonzero) digits is 116640, while the sum is 39.

The square root of 385363290 is about 19630.6721739221. The cubic root of 385363290 is about 727.7073817443.

The spelling of 385363290 in words is "three hundred eighty-five million, three hundred sixty-three thousand, two hundred ninety".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 988111 1976222 2964333 4940555 5928666 9881110 12845443 14821665 25690886 29643330 38536329 64227215 77072658 128454430 192681645 385363290