Search a number
-
+
1969254248 = 231323833803
BaseRepresentation
bin111010101100000…
…0110111101101000
312002020111110222112
41311120012331220
513013112113443
6523223541452
766541246013
oct16530067550
95066443875
101969254248
11920657955
1246b5ba888
13254ca0b00
1414977437a
15b7d3cb18
hex75606f68

1969254248 has 48 divisors (see below), whose sum is σ = 4009720320. Its totient is φ = 906275136.

The previous prime is 1969254233. The next prime is 1969254281. The reversal of 1969254248 is 8424529691.

It is a junction number, because it is equal to n+sod(n) for n = 1969254196 and 1969254205.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 515915 + ... + 519717.

It is an arithmetic number, because the mean of its divisors is an integer number (83535840).

Almost surely, 21969254248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1969254248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2004860160).

1969254248 is an abundant number, since it is smaller than the sum of its proper divisors (2040466072).

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

1969254248 is a wasteful number, since it uses less digits than its factorization.

1969254248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4218 (or 4201 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 50.

The square root of 1969254248 is about 44376.2802406871. The cubic root of 1969254248 is about 1253.4314775893.

The spelling of 1969254248 in words is "one billion, nine hundred sixty-nine million, two hundred fifty-four thousand, two hundred forty-eight".

Divisors: 1 2 4 8 13 26 52 104 169 338 383 676 766 1352 1532 3064 3803 4979 7606 9958 15212 19916 30424 39832 49439 64727 98878 129454 197756 258908 395512 517816 642707 1285414 1456549 2570828 2913098 5141656 5826196 11652392 18935137 37870274 75740548 151481096 246156781 492313562 984627124 1969254248