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38883880 = 2357197309
BaseRepresentation
bin1001010001010…
…1001000101000
32201011111122201
42110111020220
534423241010
63505225544
7651336040
oct224251050
981144581
1038883880
111aa49042
12110322b4
138095819
145242720
15363123a
hex2515228

38883880 has 64 divisors (see below), whose sum is σ = 105264000. Its totient is φ = 12628224.

The previous prime is 38883877. The next prime is 38883953. The reversal of 38883880 is 8838883.

It is a happy number.

It is a super-2 number, since 2×388838802 = 3023912247708800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 38883880.

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, 1666 + ... + 8974.

It is an arithmetic number, because the mean of its divisors is an integer number (1644750).

Almost surely, 238883880 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 38883880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52632000).

38883880 is an abundant number, since it is smaller than the sum of its proper divisors (66380120).

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

38883880 is a wasteful number, since it uses less digits than its factorization.

38883880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7346 (or 7342 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 46.

The square root of 38883880 is about 6235.6940271312. The cubic root of 38883880 is about 338.7842392192.

The spelling of 38883880 in words is "thirty-eight million, eight hundred eighty-three thousand, eight hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 19 20 28 35 38 40 56 70 76 95 133 140 152 190 266 280 380 532 665 760 1064 1330 2660 5320 7309 14618 29236 36545 51163 58472 73090 102326 138871 146180 204652 255815 277742 292360 409304 511630 555484 694355 972097 1023260 1110968 1388710 1944194 2046520 2777420 3888388 4860485 5554840 7776776 9720970 19441940 38883880