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38820768 = 2537411409
BaseRepresentation
bin1001010000010…
…1101110100000
32201001022002020
42110011232200
534414231033
63504021440
7650654040
oct224055640
981038066
1038820768
111aa05688
1211001880
138072b8c
145227720
15361c6b3
hex2505ba0

38820768 has 96 divisors (see below), whose sum is σ = 119387520. Its totient is φ = 10813440.

The previous prime is 38820739. The next prime is 38820797. The reversal of 38820768 is 86702883.

It is an interprime number because it is at equal distance from previous prime (38820739) and next prime (38820797).

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 26848 + ... + 28256.

It is an arithmetic number, because the mean of its divisors is an integer number (1243620).

Almost surely, 238820768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38820768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59693760).

38820768 is an abundant number, since it is smaller than the sum of its proper divisors (80566752).

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

38820768 is a wasteful number, since it uses less digits than its factorization.

38820768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1470 (or 1462 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 38820768 is about 6230.6314286756. The cubic root of 38820768 is about 338.6008476330.

The spelling of 38820768 in words is "thirty-eight million, eight hundred twenty thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 41 42 48 56 82 84 96 112 123 164 168 224 246 287 328 336 492 574 656 672 861 984 1148 1312 1409 1722 1968 2296 2818 3444 3936 4227 4592 5636 6888 8454 9184 9863 11272 13776 16908 19726 22544 27552 29589 33816 39452 45088 57769 59178 67632 78904 115538 118356 135264 157808 173307 231076 236712 315616 346614 404383 462152 473424 693228 808766 924304 946848 1213149 1386456 1617532 1848608 2426298 2772912 3235064 4852596 5545824 6470128 9705192 12940256 19410384 38820768