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38070438 = 2372573527
BaseRepresentation
bin1001000100111…
…0100010100110
32122122011211020
42101032202212
534221223223
63435552010
7641410350
oct221164246
978564736
1038070438
111a54297a
12108bb606
137b6c4b3
1450b00d0
1535201e3
hex244e8a6

38070438 has 32 divisors (see below), whose sum is σ = 87381504. Its totient is φ = 10831872.

The previous prime is 38070421. The next prime is 38070457. The reversal of 38070438 is 83407083.

It is a junction number, because it is equal to n+sod(n) for n = 38070399 and 38070408.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 9031 + ... + 12557.

It is an arithmetic number, because the mean of its divisors is an integer number (2730672).

Almost surely, 238070438 is an apocalyptic number.

38070438 is an abundant number, since it is smaller than the sum of its proper divisors (49311066).

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

38070438 is a wasteful number, since it uses less digits than its factorization.

With its successor (38070439) it forms an eRAP, since the sums of their prime factors are consecutive (3796 and 3797).

38070438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3796.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 38070438 is about 6170.1246340734. The cubic root of 38070438 is about 336.4051412537.

The spelling of 38070438 in words is "thirty-eight million, seventy thousand, four hundred thirty-eight".

Divisors: 1 2 3 6 7 14 21 42 257 514 771 1542 1799 3527 3598 5397 7054 10581 10794 21162 24689 49378 74067 148134 906439 1812878 2719317 5438634 6345073 12690146 19035219 38070438