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268937660 = 22513446883
BaseRepresentation
bin10000000001111…
…010100110111100
3200202001110010002
4100001322212330
51022322001120
642404133432
76443634545
oct2001724674
9622043102
10268937660
11128898932
1276097278
1343943414
1427a094cc
1518925375
hex1007a9bc

268937660 has 12 divisors (see below), whose sum is σ = 564769128. Its totient is φ = 107575056.

The previous prime is 268937659. The next prime is 268937693. The reversal of 268937660 is 66739862.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6723422 + ... + 6723461.

It is an arithmetic number, because the mean of its divisors is an integer number (47064094).

Almost surely, 2268937660 is an apocalyptic number.

268937660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268937660 is an abundant number, since it is smaller than the sum of its proper divisors (295831468).

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

268937660 is a wasteful number, since it uses less digits than its factorization.

268937660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13446892 (or 13446890 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 47.

The square root of 268937660 is about 16399.3188882953. The cubic root of 268937660 is about 645.4816105343.

The spelling of 268937660 in words is "two hundred sixty-eight million, nine hundred thirty-seven thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 13446883 26893766 53787532 67234415 134468830 268937660