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13276920 = 2335110641
BaseRepresentation
bin110010101001…
…011011111000
3220222112111210
4302221123320
511344330140
61152323120
7220565136
oct62513370
926875453
1013276920
117549168
1245434a0
13299b287
141a98756
151273d80
hexca96f8

13276920 has 32 divisors (see below), whose sum is σ = 39831120. Its totient is φ = 3540480.

The previous prime is 13276919. The next prime is 13276927. The reversal of 13276920 is 2967231.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13276927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55201 + ... + 55440.

Almost surely, 213276920 is an apocalyptic number.

13276920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13276920 is an abundant number, since it is smaller than the sum of its proper divisors (26554200).

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

13276920 is a wasteful number, since it uses less digits than its factorization.

13276920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110655 (or 110651 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 13276920 is about 3643.7508147512. The cubic root of 13276920 is about 236.7913205213.

It can be divided in two parts, 13276 and 920, that added together give a triangular number (14196 = T168).

The spelling of 13276920 in words is "thirteen million, two hundred seventy-six thousand, nine hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 110641 221282 331923 442564 553205 663846 885128 1106410 1327692 1659615 2212820 2655384 3319230 4425640 6638460 13276920