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269830890 = 23257428303
BaseRepresentation
bin10000000101010…
…100101011101010
3200210201211101200
4100011110223222
51023034042030
642435225030
76454344660
oct2005245352
9623654350
10269830890
11129348a3a
1276448176
1343b96b64
1427b9cc30
1518a4ed60
hex10154aea

269830890 has 48 divisors (see below), whose sum is σ = 801785088. Its totient is φ = 61675488.

The previous prime is 269830879. The next prime is 269830903. The reversal of 269830890 is 98038962.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 213522 + ... + 214781.

It is an arithmetic number, because the mean of its divisors is an integer number (16703856).

Almost surely, 2269830890 is an apocalyptic number.

269830890 is an abundant number, since it is smaller than the sum of its proper divisors (531954198).

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

269830890 is a wasteful number, since it uses less digits than its factorization.

269830890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428323 (or 428320 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 269830890 is about 16426.5300657199. The cubic root of 269830890 is about 646.1954394013.

The spelling of 269830890 in words is "two hundred sixty-nine million, eight hundred thirty thousand, eight hundred ninety".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 63 70 90 105 126 210 315 630 428303 856606 1284909 2141515 2569818 2998121 3854727 4283030 5996242 6424545 7709454 8994363 12849090 14990605 17988726 19273635 26983089 29981210 38547270 44971815 53966178 89943630 134915445 269830890