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38146830 = 2351271561
BaseRepresentation
bin1001000110000…
…1001100001110
32122210001121120
42101201030032
534231144310
63441341410
7642146151
oct221411416
978701546
1038146830
111a595307
1210937866
137b981b7
1450cdc98
153537b70
hex246130e

38146830 has 16 divisors (see below), whose sum is σ = 91552464. Its totient is φ = 10172480.

The previous prime is 38146817. The next prime is 38146837. The reversal of 38146830 is 3864183.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 38146791 and 38146800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38146837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 635751 + ... + 635810.

It is an arithmetic number, because the mean of its divisors is an integer number (5722029).

Almost surely, 238146830 is an apocalyptic number.

38146830 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38146830 is an abundant number, since it is smaller than the sum of its proper divisors (53405634).

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

38146830 is a wasteful number, since it uses less digits than its factorization.

38146830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271571.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 38146830 is about 6176.3120063676. The cubic root of 38146830 is about 336.6300006905.

The spelling of 38146830 in words is "thirty-eight million, one hundred forty-six thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 1271561 2543122 3814683 6357805 7629366 12715610 19073415 38146830