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20230860 = 22351337701
BaseRepresentation
bin100110100101…
…1001011001100
31102001211112010
41031023023030
520134341420
62001341220
7333650046
oct115131314
942054463
1020230860
1110468821
126937810
134264530
142988a96
151b994e0
hex134b2cc

20230860 has 96 divisors (see below), whose sum is σ = 62741952. Its totient is φ = 4838400.

The previous prime is 20230853. The next prime is 20230883. The reversal of 20230860 is 6803202.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28510 + ... + 29210.

It is an arithmetic number, because the mean of its divisors is an integer number (653562).

Almost surely, 220230860 is an apocalyptic number.

20230860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20230860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31370976).

20230860 is an abundant number, since it is smaller than the sum of its proper divisors (42511092).

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

20230860 is a wasteful number, since it uses less digits than its factorization.

20230860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763 (or 761 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 20230860 is about 4497.8728305722. The cubic root of 20230860 is about 272.4821860812.

The spelling of 20230860 in words is "twenty million, two hundred thirty thousand, eight hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 37 39 52 60 65 74 78 111 130 148 156 185 195 222 260 370 390 444 481 555 701 740 780 962 1110 1402 1443 1924 2103 2220 2405 2804 2886 3505 4206 4810 5772 7010 7215 8412 9113 9620 10515 14020 14430 18226 21030 25937 27339 28860 36452 42060 45565 51874 54678 77811 91130 103748 109356 129685 136695 155622 182260 259370 273390 311244 337181 389055 518740 546780 674362 778110 1011543 1348724 1556220 1685905 2023086 3371810 4046172 5057715 6743620 10115430 20230860