[go: up one dir, main page]

Search a number
-
+
13690000 = 2454372
BaseRepresentation
bin110100001110…
…010010010000
3221202112011001
4310032102100
512001040000
61205231344
7224235352
oct64162220
927675131
1013690000
117800555
124702554
132ab42bc
141b650d2
15130646a
hexd0e490

13690000 has 75 divisors (see below), whose sum is σ = 34064877. Its totient is φ = 5328000.

The previous prime is 13689997. The next prime is 13690031. The reversal of 13690000 is 9631.

The square root of 13690000 is 3700.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 4545424 + 9144576 = 2132^2 + 3024^2 .

It is a super-2 number, since 2×136900002 = 374832200000000, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13690000.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 369982 + ... + 370018.

Almost surely, 213690000 is an apocalyptic number.

13690000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13690000 is the 3700-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13690000

13690000 is an abundant number, since it is smaller than the sum of its proper divisors (20374877).

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

13690000 is an frugal number, since it uses more digits than its factorization.

13690000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102 (or 44 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 19.

The cubic root of 13690000 is about 239.2220178612. Note that the first 3 decimals are identical.

Adding to 13690000 its reverse (9631), we get a palindrome (13699631).

The spelling of 13690000 in words is "thirteen million, six hundred ninety thousand".

Divisors: 1 2 4 5 8 10 16 20 25 37 40 50 74 80 100 125 148 185 200 250 296 370 400 500 592 625 740 925 1000 1250 1369 1480 1850 2000 2500 2738 2960 3700 4625 5000 5476 6845 7400 9250 10000 10952 13690 14800 18500 21904 23125 27380 34225 37000 46250 54760 68450 74000 92500 109520 136900 171125 185000 273800 342250 370000 547600 684500 855625 1369000 1711250 2738000 3422500 6845000 13690000