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38117802 = 2361104147
BaseRepresentation
bin1001000101101…
…0000110101010
32122201120210110
42101122012222
534224232202
63440555150
7641665422
oct221320652
978646713
1038117802
111a575518
1210922ab6
137b87c18
1450c3482
15352e26c
hex245a1aa

38117802 has 16 divisors (see below), whose sum is σ = 77486112. Its totient is φ = 12497520.

The previous prime is 38117801. The next prime is 38117813. The reversal of 38117802 is 20871183.

It is a happy number.

It is a super-4 number, since 4×381178024 (a number of 31 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 38117802.

It is not an unprimeable number, because it can be changed into a prime (38117801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51708 + ... + 52439.

It is an arithmetic number, because the mean of its divisors is an integer number (4842882).

Almost surely, 238117802 is an apocalyptic number.

38117802 is an abundant number, since it is smaller than the sum of its proper divisors (39368310).

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

38117802 is a wasteful number, since it uses less digits than its factorization.

38117802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104213.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 38117802 is about 6173.9616130974. The cubic root of 38117802 is about 336.5445923240.

Adding to 38117802 its reverse (20871183), we get a palindrome (58988985).

The spelling of 38117802 in words is "thirty-eight million, one hundred seventeen thousand, eight hundred two".

Divisors: 1 2 3 6 61 122 183 366 104147 208294 312441 624882 6352967 12705934 19058901 38117802