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13780190 = 251378019
BaseRepresentation
bin110100100100…
…010011011110
3221221002212102
4310210103132
512011431230
61211205102
7225062324
oct64442336
927832772
1013780190
117862296
124746792
132b16378
141b89d14
151323045
hexd244de

13780190 has 8 divisors (see below), whose sum is σ = 24804360. Its totient is φ = 5512072.

The previous prime is 13780189. The next prime is 13780201. The reversal of 13780190 is 9108731.

13780190 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×137801902 = 379787272872200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 689000 + ... + 689019.

It is an arithmetic number, because the mean of its divisors is an integer number (3100545).

Almost surely, 213780190 is an apocalyptic number.

13780190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13780190 is a deficient number, since it is larger than the sum of its proper divisors (11024170).

13780190 is a wasteful number, since it uses less digits than its factorization.

13780190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378026.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 13780190 is about 3712.1678302577. The cubic root of 13780190 is about 239.7462016119.

The spelling of 13780190 in words is "thirteen million, seven hundred eighty thousand, one hundred ninety".

Divisors: 1 2 5 10 1378019 2756038 6890095 13780190