Search a number
-
+
215048104320 = 27357192127349
BaseRepresentation
bin1100100001000111011…
…1011010100110000000
3202120002001221120220110
43020101313122212000
512010404303314240
6242443003111320
721352043504160
oct3102167324600
9676061846813
10215048104320
1183224059755
1235817212540
1317381b0b80a
14a5a08685a0
1558d95dbc80
hex3211dda980

215048104320 has 768 divisors, whose sum is σ = 835688448000. Its totient is φ = 46067761152.

The previous prime is 215048104309. The next prime is 215048104331. The reversal of 215048104320 is 23401840512.

It is an interprime number because it is at equal distance from previous prime (215048104309) and next prime (215048104331).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 616183506 + ... + 616183854.

It is an arithmetic number, because the mean of its divisors is an integer number (1088136000).

Almost surely, 2215048104320 is an apocalyptic number.

215048104320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215048104320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (417844224000).

215048104320 is an abundant number, since it is smaller than the sum of its proper divisors (620640343680).

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

215048104320 is a wasteful number, since it uses less digits than its factorization.

215048104320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543 (or 512 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

Adding to 215048104320 its reverse (23401840512), we get a palindrome (238449944832).

The spelling of 215048104320 in words is "two hundred fifteen billion, forty-eight million, one hundred four thousand, three hundred twenty".