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268989792 = 2532801977
BaseRepresentation
bin10000000010000…
…111010101100000
3200202011002121220
4100002013111200
51022330133132
642405215040
76444242541
oct2002072540
9622132556
10268989792
11128924015
1276101480
1343961076
1427a204c8
1518935a2c
hex10087560

268989792 has 24 divisors (see below), whose sum is σ = 706098456. Its totient is φ = 89663232.

The previous prime is 268989781. The next prime is 268989797. The reversal of 268989792 is 297989862.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268989797) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1400893 + ... + 1401084.

It is an arithmetic number, because the mean of its divisors is an integer number (29420769).

Almost surely, 2268989792 is an apocalyptic number.

It is an amenable number.

268989792 is an abundant number, since it is smaller than the sum of its proper divisors (437108664).

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

268989792 is a wasteful number, since it uses less digits than its factorization.

268989792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2801990 (or 2801982 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 60.

The square root of 268989792 is about 16400.9082675320. The cubic root of 268989792 is about 645.5233154573.

The spelling of 268989792 in words is "two hundred sixty-eight million, nine hundred eighty-nine thousand, seven hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 2801977 5603954 8405931 11207908 16811862 22415816 33623724 44831632 67247448 89663264 134494896 268989792