Search a number
-
+
215125352430 = 23519377412899
BaseRepresentation
bin1100100001011001111…
…0000101111111101110
3202120021110022012101120
43020112132011333232
512011034042234210
6242454402521410
721354002216262
oct3102636057756
9676243265346
10215125352430
118326372036a
1235839066266
1317394b17461
14a5aac160a2
1558e129a270
hex3216785fee

215125352430 has 32 divisors (see below), whose sum is σ = 543474576000. Its totient is φ = 54347457312.

The previous prime is 215125352423. The next prime is 215125352443. The reversal of 215125352430 is 34253521512.

215125352430 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 215125352391 and 215125352400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188705880 + ... + 188707019.

It is an arithmetic number, because the mean of its divisors is an integer number (16983580500).

Almost surely, 2215125352430 is an apocalyptic number.

215125352430 is an abundant number, since it is smaller than the sum of its proper divisors (328349223570).

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

215125352430 is a wasteful number, since it uses less digits than its factorization.

215125352430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377412928.

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 215125352430 its reverse (34253521512), we get a palindrome (249378873942).

The spelling of 215125352430 in words is "two hundred fifteen billion, one hundred twenty-five million, three hundred fifty-two thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 95 114 190 285 570 377412899 754825798 1132238697 1887064495 2264477394 3774128990 5661193485 7170845081 11322386970 14341690162 21512535243 35854225405 43025070486 71708450810 107562676215 215125352430