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13783090 = 251781077
BaseRepresentation
bin110100100101…
…000000110010
3221221020211211
4310211000302
512012024330
61211230334
7225103636
oct64450062
927836754
1013783090
117864492
1247483aa
132b17799
141b8adc6
151323d2a
hexd25032

13783090 has 16 divisors (see below), whose sum is σ = 26269272. Its totient is φ = 5188864.

The previous prime is 13783069. The next prime is 13783097. The reversal of 13783090 is 9038731.

It can be written as a sum of positive squares in 4 ways, for example, as 13682601 + 100489 = 3699^2 + 317^2 .

It is not an unprimeable number, because it can be changed into a prime (13783097) 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, 40369 + ... + 40708.

Almost surely, 213783090 is an apocalyptic number.

13783090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13783090 is a deficient number, since it is larger than the sum of its proper divisors (12486182).

13783090 is a wasteful number, since it uses less digits than its factorization.

13783090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81101.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 13783090 is about 3712.5584170488. The cubic root of 13783090 is about 239.7630183907.

The spelling of 13783090 in words is "thirteen million, seven hundred eighty-three thousand, ninety".

Divisors: 1 2 5 10 17 34 85 170 81077 162154 405385 810770 1378309 2756618 6891545 13783090