Search a number
-
+
31230201300 = 22352104100671
BaseRepresentation
bin11101000101011101…
…110000110111010100
32222121111010121022020
4131011131300313110
51002424412420200
622202535333140
72153625221364
oct350535606724
988544117266
1031230201300
11122766a8521
126076b211b0
132c3920206c
14172399a9a4
15c2bb2cea0
hex745770dd4

31230201300 has 36 divisors (see below), whose sum is σ = 90359383296. Its totient is φ = 8328053600.

The previous prime is 31230201287. The next prime is 31230201391. The reversal of 31230201300 is 310203213.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 31230201300.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52050036 + ... + 52050635.

Almost surely, 231230201300 is an apocalyptic number.

31230201300 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31230201300 is an abundant number, since it is smaller than the sum of its proper divisors (59129181996).

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

31230201300 is a wasteful number, since it uses less digits than its factorization.

31230201300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104100688 (or 104100681 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 31230201300 its reverse (310203213), we get a palindrome (31540404513).

The spelling of 31230201300 in words is "thirty-one billion, two hundred thirty million, two hundred one thousand, three hundred".

Divisors: 1 2 3 4 5 6 10 12 15 20 25 30 50 60 75 100 150 300 104100671 208201342 312302013 416402684 520503355 624604026 1041006710 1249208052 1561510065 2082013420 2602516775 3123020130 5205033550 6246040260 7807550325 10410067100 15615100650 31230201300