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268028804380 = 22537613159077
BaseRepresentation
bin1111100110011111000…
…0101111110100011100
3221121211101111000022211
43321213300233310130
513342410333220010
6323044123250204
725236001150441
oct3714760576434
9847741430284
10268028804380
11a37412aa887
1243b42379964
131c37626618c
14cd88db99c8
156e8a9b208a
hex3e67c2fd1c

268028804380 has 48 divisors (see below), whose sum is σ = 578177008416. Its totient is φ = 104295133440.

The previous prime is 268028804357. The next prime is 268028804389. The reversal of 268028804380 is 83408820862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268028804389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4507402 + ... + 4566478.

It is an arithmetic number, because the mean of its divisors is an integer number (12045354342).

Almost surely, 2268028804380 is an apocalyptic number.

268028804380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268028804380 is an abundant number, since it is smaller than the sum of its proper divisors (310148204036).

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

268028804380 is a wasteful number, since it uses less digits than its factorization.

268028804380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65254 (or 65252 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 49.

The spelling of 268028804380 in words is "two hundred sixty-eight billion, twenty-eight million, eight hundred four thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 37 74 148 185 370 740 6131 12262 24524 30655 59077 61310 118154 122620 226847 236308 295385 453694 590770 907388 1134235 1181540 2185849 2268470 4371698 4536940 8743396 10929245 21858490 43716980 362201087 724402174 1448804348 1811005435 3622010870 7244021740 13401440219 26802880438 53605760876 67007201095 134014402190 268028804380