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20370896 = 2471317823
BaseRepresentation
bin100110110110…
…1010111010000
31102022221121122
41031231113100
520203332041
62004341412
7335102240
oct115552720
942287548
1020370896
1110553a57
1269a4868
1342b31b0
1429c3b20
151bc5c4b
hex136d5d0

20370896 has 80 divisors (see below), whose sum is σ = 51496704. Its totient is φ = 7575552.

The previous prime is 20370887. The next prime is 20370919. The reversal of 20370896 is 69807302.

20370896 = T289 + T290 + ... + T526.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24341 + ... + 25163.

Almost surely, 220370896 is an apocalyptic number.

20370896 is a gapful number since it is divisible by the number (26) 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 20370896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25748352).

20370896 is an abundant number, since it is smaller than the sum of its proper divisors (31125808).

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

20370896 is a wasteful number, since it uses less digits than its factorization.

20370896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868 (or 862 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 20370896 is about 4513.4128993479. The cubic root of 20370896 is about 273.1094392320.

The spelling of 20370896 in words is "twenty million, three hundred seventy thousand, eight hundred ninety-six".

Divisors: 1 2 4 7 8 13 14 16 17 26 28 34 52 56 68 91 104 112 119 136 182 208 221 238 272 364 442 476 728 823 884 952 1456 1547 1646 1768 1904 3094 3292 3536 5761 6188 6584 10699 11522 12376 13168 13991 21398 23044 24752 27982 42796 46088 55964 74893 85592 92176 97937 111928 149786 171184 181883 195874 223856 299572 363766 391748 599144 727532 783496 1198288 1273181 1455064 1566992 2546362 2910128 5092724 10185448 20370896