Search a number
-
+
38934490 = 2571015507
BaseRepresentation
bin1001010010000…
…1011111011010
32201021002002011
42110201133122
534431400430
63510300134
7651636430
oct224413732
981232064
1038934490
111aa83071
121105764a
1380b287a
145256d50
15364122a
hex25217da

38934490 has 32 divisors (see below), whose sum is σ = 80901504. Its totient is φ = 13214400.

The previous prime is 38934487. The next prime is 38934491. The reversal of 38934490 is 9443983.

38934490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (38934491) 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 15 ways as a sum of consecutive naturals, for example, 4317 + ... + 9823.

It is an arithmetic number, because the mean of its divisors is an integer number (2528172).

Almost surely, 238934490 is an apocalyptic number.

38934490 is an abundant number, since it is smaller than the sum of its proper divisors (41967014).

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

38934490 is a wasteful number, since it uses less digits than its factorization.

38934490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5622.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 38934490 is about 6239.7507963059. The cubic root of 38934490 is about 338.9311590301.

The spelling of 38934490 in words is "thirty-eight million, nine hundred thirty-four thousand, four hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 101 202 505 707 1010 1414 3535 5507 7070 11014 27535 38549 55070 77098 192745 385490 556207 1112414 2781035 3893449 5562070 7786898 19467245 38934490