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13793530 = 251379353
BaseRepresentation
bin110100100111…
…100011111010
3221221210011111
4310213203322
512012343110
61211350534
7225146242
oct64474372
927853144
1013793530
117871313
12475244a
132b1c46a
141b90b22
151326e8a
hexd278fa

13793530 has 8 divisors (see below), whose sum is σ = 24828372. Its totient is φ = 5517408.

The previous prime is 13793519. The next prime is 13793539. The reversal of 13793530 is 3539731.

It can be written as a sum of positive squares in 2 ways, for example, as 13155129 + 638401 = 3627^2 + 799^2 .

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

It is a super-2 number, since 2×137935302 = 380522939721800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13793492 and 13793501.

It is not an unprimeable number, because it can be changed into a prime (13793539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 689667 + ... + 689686.

Almost surely, 213793530 is an apocalyptic number.

13793530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13793530 is a deficient number, since it is larger than the sum of its proper divisors (11034842).

13793530 is a wasteful number, since it uses less digits than its factorization.

13793530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379360.

The product of its (nonzero) digits is 8505, while the sum is 31.

The square root of 13793530 is about 3713.9641893804. The cubic root of 13793530 is about 239.8235392700.

The spelling of 13793530 in words is "thirteen million, seven hundred ninety-three thousand, five hundred thirty".

Divisors: 1 2 5 10 1379353 2758706 6896765 13793530