Search a number
-
+
1369688950 = 25273913397
BaseRepresentation
bin101000110100011…
…1100101101110110
310112110022102000101
41101220330231312
510301120021300
6343525104314
745641110150
oct12150745566
93473272011
101369688950
11643176643
1232285809a
1318a9c8046
14cdca1ad0
15803a8b6a
hex51a3cb76

1369688950 has 24 divisors (see below), whose sum is σ = 2911568112. Its totient is φ = 469607520.

The previous prime is 1369688909. The next prime is 1369688959. The reversal of 1369688950 is 598869631.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1369688891 and 1369688900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1369688959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1956349 + ... + 1957048.

It is an arithmetic number, because the mean of its divisors is an integer number (121315338).

Almost surely, 21369688950 is an apocalyptic number.

1369688950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1369688950 is an abundant number, since it is smaller than the sum of its proper divisors (1541879162).

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

1369688950 is a wasteful number, since it uses less digits than its factorization.

1369688950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3913416 (or 3913411 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 55.

The square root of 1369688950 is about 37009.3089640971. The cubic root of 1369688950 is about 1110.5564804331.

The spelling of 1369688950 in words is "one billion, three hundred sixty-nine million, six hundred eighty-eight thousand, nine hundred fifty".

Divisors: 1 2 5 7 10 14 25 35 50 70 175 350 3913397 7826794 19566985 27393779 39133970 54787558 97834925 136968895 195669850 273937790 684844475 1369688950