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1390250014 = 21609432023
BaseRepresentation
bin101001011011101…
…1000100000011110
310120220000000111021
41102313120200132
510321401000024
6345541514354
746310634016
oct12267304036
93526000437
101390250014
1165383a45a
123297129ba
1319204695a
14d28d4c46
15820bade4
hex52dd881e

1390250014 has 8 divisors (see below), whose sum is σ = 2086675920. Its totient is φ = 694691376.

The previous prime is 1390250011. The next prime is 1390250047. The reversal of 1390250014 is 4100520931.

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 (1390250011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212794 + ... + 219229.

It is an arithmetic number, because the mean of its divisors is an integer number (260834490).

Almost surely, 21390250014 is an apocalyptic number.

1390250014 is a deficient number, since it is larger than the sum of its proper divisors (696425906).

1390250014 is a wasteful number, since it uses less digits than its factorization.

1390250014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433634.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 1390250014 is about 37286.0565627421. The cubic root of 1390250014 is about 1116.0859372721.

Adding to 1390250014 its reverse (4100520931), we get a palindrome (5490770945).

The spelling of 1390250014 in words is "one billion, three hundred ninety million, two hundred fifty thousand, fourteen".

Divisors: 1 2 1609 3218 432023 864046 695125007 1390250014