Search a number
-
+
68887252 = 22710124359
BaseRepresentation
bin1000001101100…
…10001011010100
311210121211112201
410012302023110
5120113343002
610500254244
71464350320
oct406621324
9153554481
1068887252
1135981015
121b0a1384
131136c1b5
149212980
1560ab087
hex41b22d4

68887252 has 24 divisors (see below), whose sum is σ = 139144320. Its totient is φ = 29229600.

The previous prime is 68887243. The next prime is 68887271. The reversal of 68887252 is 25278886.

It is a happy number.

It is a super-2 number, since 2×688872522 = 9490906976223008, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 9352 + ... + 15007.

It is an arithmetic number, because the mean of its divisors is an integer number (5797680).

Almost surely, 268887252 is an apocalyptic number.

It is an amenable number.

68887252 is an abundant number, since it is smaller than the sum of its proper divisors (70257068).

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

68887252 is a wasteful number, since it uses less digits than its factorization.

68887252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24471 (or 24469 counting only the distinct ones).

The product of its digits is 430080, while the sum is 46.

The square root of 68887252 is about 8299.8344561804. The cubic root of 68887252 is about 409.9330685904.

The spelling of 68887252 in words is "sixty-eight million, eight hundred eighty-seven thousand, two hundred fifty-two".

Divisors: 1 2 4 7 14 28 101 202 404 707 1414 2828 24359 48718 97436 170513 341026 682052 2460259 4920518 9841036 17221813 34443626 68887252