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1241290 = 251011229
BaseRepresentation
bin100101111000011001010
32100001201201
410233003022
5304210130
642334414
713356631
oct4570312
92301651
101241290
11778666
124ba40a
13345cbb
14244518
15197bca
hex12f0ca

1241290 has 16 divisors (see below), whose sum is σ = 2258280. Its totient is φ = 491200.

The previous prime is 1241269. The next prime is 1241291. The reversal of 1241290 is 921421.

It can be written as a sum of positive squares in 4 ways, for example, as 1207801 + 33489 = 1099^2 + 183^2 .

It is not an unprimeable number, because it can be changed into a prime (1241291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 396 + ... + 1624.

21241290 is an apocalyptic number.

1241290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1241290 is a deficient number, since it is larger than the sum of its proper divisors (1016990).

1241290 is a wasteful number, since it uses less digits than its factorization.

1241290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1241290 is about 1114.1319490976. The cubic root of 1241290 is about 107.4709494243.

The spelling of 1241290 in words is "one million, two hundred forty-one thousand, two hundred ninety".

Divisors: 1 2 5 10 101 202 505 1010 1229 2458 6145 12290 124129 248258 620645 1241290