Search a number
-
+
1013990 = 25101399
BaseRepresentation
bin11110111100011100110
31220111221012
43313203212
5224421430
633422222
711422145
oct3674346
91814835
101013990
1163290a
1240a972
132966c3
141c575c
15150695
hexf78e6

1013990 has 8 divisors (see below), whose sum is σ = 1825200. Its totient is φ = 405592.

The previous prime is 1013933. The next prime is 1013993. The reversal of 1013990 is 993101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013993) 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 3 ways as a sum of consecutive naturals, for example, 50690 + ... + 50709.

It is an arithmetic number, because the mean of its divisors is an integer number (228150).

21013990 is an apocalyptic number.

1013990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1013990 is a deficient number, since it is larger than the sum of its proper divisors (811210).

1013990 is a wasteful number, since it uses less digits than its factorization.

1013990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101406.

The product of its (nonzero) digits is 243, while the sum is 23.

The square root of 1013990 is about 1006.9707046384. The cubic root of 1013990 is about 100.4641754115.

The spelling of 1013990 in words is "one million, thirteen thousand, nine hundred ninety".

Divisors: 1 2 5 10 101399 202798 506995 1013990