Search a number
-
+
28706082 = 237365539
BaseRepresentation
bin110110110000…
…0010100100010
32000000102100020
41231200110202
524322043312
62503134310
7465666126
oct155402442
960012306
1028706082
1115227339
129744396
135c41062
143b53586
1527c078c
hex1b60522

28706082 has 16 divisors (see below), whose sum is σ = 58199520. Its totient is φ = 9437472.

The previous prime is 28706059. The next prime is 28706087. The reversal of 28706082 is 28060782.

It is not an unprimeable number, because it can be changed into a prime (28706087) 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, 32332 + ... + 33207.

It is an arithmetic number, because the mean of its divisors is an integer number (3637470).

Almost surely, 228706082 is an apocalyptic number.

28706082 is an abundant number, since it is smaller than the sum of its proper divisors (29493438).

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

28706082 is a wasteful number, since it uses less digits than its factorization.

28706082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65617.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 28706082 is about 5357.8057075635. The cubic root of 28706082 is about 306.1902145131.

The spelling of 28706082 in words is "twenty-eight million, seven hundred six thousand, eighty-two".

Divisors: 1 2 3 6 73 146 219 438 65539 131078 196617 393234 4784347 9568694 14353041 28706082