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268747080 = 23357319937
BaseRepresentation
bin10000000001001…
…100000101001000
3200201200202200120
4100001030011020
51022244401310
642400103240
76442212120
oct2001140510
9621622616
10268747080
11128778728
1276004b20
13438a7754
1427999c80
15188d8b70
hex1004c148

268747080 has 64 divisors (see below), whose sum is σ = 921421440. Its totient is φ = 61427712.

The previous prime is 268747051. The next prime is 268747139. The reversal of 268747080 is 80747862.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159129 + ... + 160808.

It is an arithmetic number, because the mean of its divisors is an integer number (14397210).

Almost surely, 2268747080 is an apocalyptic number.

268747080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268747080 is an abundant number, since it is smaller than the sum of its proper divisors (652674360).

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

268747080 is a wasteful number, since it uses less digits than its factorization.

268747080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319958 (or 319954 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 42.

The square root of 268747080 is about 16393.5072513480. The cubic root of 268747080 is about 645.3291031282.

The spelling of 268747080 in words is "two hundred sixty-eight million, seven hundred forty-seven thousand, eighty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 35 40 42 56 60 70 84 105 120 140 168 210 280 420 840 319937 639874 959811 1279748 1599685 1919622 2239559 2559496 3199370 3839244 4479118 4799055 6398740 6718677 7678488 8958236 9598110 11197795 12797480 13437354 17916472 19196220 22395590 26874708 33593385 38392440 44791180 53749416 67186770 89582360 134373540 268747080