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38020724 = 2271357883
BaseRepresentation
bin1001000100001…
…0011001110100
32122112122121222
42101002121310
534213130344
63434525512
7641112410
oct221023164
978478558
1038020724
111a509595
1210896898
137b52991
145099d40
1535105ee
hex2442674

38020724 has 12 divisors (see below), whose sum is σ = 76041504. Its totient is φ = 16294584.

The previous prime is 38020709. The next prime is 38020733. The reversal of 38020724 is 42702083.

38020724 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 38020693 and 38020702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 678914 + ... + 678969.

It is an arithmetic number, because the mean of its divisors is an integer number (6336792).

Almost surely, 238020724 is an apocalyptic number.

It is an amenable number.

38020724 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

38020724 is a wasteful number, since it uses less digits than its factorization.

38020724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357894 (or 1357892 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 38020724 is about 6166.0947122145. The cubic root of 38020724 is about 336.2586467468.

The spelling of 38020724 in words is "thirty-eight million, twenty thousand, seven hundred twenty-four".

Divisors: 1 2 4 7 14 28 1357883 2715766 5431532 9505181 19010362 38020724