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268981098 = 23191234713
BaseRepresentation
bin10000000010000…
…101001101101010
3200202010122200220
4100002011031222
51022324343343
642405110510
76444205311
oct2002051552
9622118626
10268981098
11128918531
12760b8436
134395a119
1427a1b278
1518933183
hex1008536a

268981098 has 16 divisors (see below), whose sum is σ = 540781056. Its totient is φ = 89190560.

The previous prime is 268981091. The next prime is 268981099. The reversal of 268981098 is 890189862.

It is a self number, because there is not a number n which added to its sum of digits gives 268981098.

It is not an unprimeable number, because it can be changed into a prime (268981091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116211 + ... + 118502.

It is an arithmetic number, because the mean of its divisors is an integer number (33798816).

Almost surely, 2268981098 is an apocalyptic number.

268981098 is an abundant number, since it is smaller than the sum of its proper divisors (271799958).

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

268981098 is a wasteful number, since it uses less digits than its factorization.

268981098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234909.

The product of its (nonzero) digits is 497664, while the sum is 51.

The square root of 268981098 is about 16400.6432190936. The cubic root of 268981098 is about 645.5163607446.

The spelling of 268981098 in words is "two hundred sixty-eight million, nine hundred eighty-one thousand, ninety-eight".

Divisors: 1 2 3 6 191 382 573 1146 234713 469426 704139 1408278 44830183 89660366 134490549 268981098