Search a number
1258480 = 24515731
BaseRepresentation
bin100110011001111110000
32100221022101
410303033300
5310232410
642550144
713461016
oct4631760
92327271
101258480
1178a573
12508354
13350a82
1424a8b6
1519cd3a
hex1333f0

1258480 has 20 divisors (see below), whose sum is σ = 2926152. Its totient is φ = 503360.

The previous prime is 1258471. The next prime is 1258483. The reversal of 1258480 is 848521.

1258480 = T707 + T708 + ... + T711.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1258483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7786 + ... + 7945.

21258480 is an apocalyptic number.

1258480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1258480 is an abundant number, since it is smaller than the sum of its proper divisors (1667672).

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

1258480 is a wasteful number, since it uses less digits than its factorization.

1258480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15744 (or 15738 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 1258480 is about 1121.8199499028. The cubic root of 1258480 is about 107.9647804684.

The spelling of 1258480 in words is "one million, two hundred fifty-eight thousand, four hundred eighty".