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36838890 = 232511127293
BaseRepresentation
bin1000110010000…
…1110111101010
32120022121110100
42030201313222
533412321030
63353330230
7625061004
oct214416752
976277410
1036838890
1119881670
1210406976
13782aa7a
144c6d374
15337a360
hex2321dea

36838890 has 96 divisors (see below), whose sum is σ = 105670656. Its totient is φ = 8830080.

The previous prime is 36838873. The next prime is 36838897. The reversal of 36838890 is 9883863.

36838890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36838897) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 125584 + ... + 125876.

It is an arithmetic number, because the mean of its divisors is an integer number (1100736).

Almost surely, 236838890 is an apocalyptic number.

36838890 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 36838890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52835328).

36838890 is an abundant number, since it is smaller than the sum of its proper divisors (68831766).

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

36838890 is a wasteful number, since it uses less digits than its factorization.

36838890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444 (or 441 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 36838890 is about 6069.5049221497. The cubic root of 36838890 is about 332.7378289795.

The spelling of 36838890 in words is "thirty-six million, eight hundred thirty-eight thousand, eight hundred ninety".

Divisors: 1 2 3 5 6 9 10 11 15 18 22 30 33 45 55 66 90 99 110 127 165 198 254 293 330 381 495 586 635 762 879 990 1143 1270 1397 1465 1758 1905 2286 2637 2794 2930 3223 3810 4191 4395 5274 5715 6446 6985 8382 8790 9669 11430 12573 13185 13970 16115 19338 20955 25146 26370 29007 32230 37211 41910 48345 58014 62865 74422 96690 111633 125730 145035 186055 223266 290070 334899 372110 409321 558165 669798 818642 1116330 1227963 1674495 2046605 2455926 3348990 3683889 4093210 6139815 7367778 12279630 18419445 36838890