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13274780 = 2253831733
BaseRepresentation
bin110010101000…
…111010011100
3220222102120112
4302220322130
511344243110
61152305152
7220555661
oct62507234
926872515
1013274780
1175475a2
1245421b8
13299a2cc
141a97a68
151273405
hexca8e9c

13274780 has 24 divisors (see below), whose sum is σ = 27965952. Its totient is φ = 5292992.

The previous prime is 13274761. The next prime is 13274791. The reversal of 13274780 is 8747231.

It is a happy number.

13274780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6794 + ... + 8526.

It is an arithmetic number, because the mean of its divisors is an integer number (1165248).

Almost surely, 213274780 is an apocalyptic number.

13274780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13274780 is an abundant number, since it is smaller than the sum of its proper divisors (14691172).

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

13274780 is a wasteful number, since it uses less digits than its factorization.

13274780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2125 (or 2123 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 13274780 is about 3643.4571494667. The cubic root of 13274780 is about 236.7785976746.

The spelling of 13274780 in words is "thirteen million, two hundred seventy-four thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 383 766 1532 1733 1915 3466 3830 6932 7660 8665 17330 34660 663739 1327478 2654956 3318695 6637390 13274780