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1380708 = 223275479
BaseRepresentation
bin101010001000101100100
32121010222100
411101011210
5323140313
645332100
714510250
oct5210544
92533870
101380708
1186338a
12567030
133945b4
1427d260
151c4173
hex151164

1380708 has 36 divisors (see below), whose sum is σ = 3989440. Its totient is φ = 394416.

The previous prime is 1380707. The next prime is 1380721. The reversal of 1380708 is 8070831.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (1380707) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2488 + ... + 2991.

21380708 is an apocalyptic number.

1380708 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1380708 is an abundant number, since it is smaller than the sum of its proper divisors (2608732).

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

1380708 is a wasteful number, since it uses less digits than its factorization.

1380708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5496 (or 5491 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 1380708 is about 1175.0353186181. The cubic root of 1380708 is about 111.3526645609.

The spelling of 1380708 in words is "one million, three hundred eighty thousand, seven hundred eight".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 252 5479 10958 16437 21916 32874 38353 49311 65748 76706 98622 115059 153412 197244 230118 345177 460236 690354 1380708