Search a number
-
+
2570421270 = 2351915728723
BaseRepresentation
bin1001100100110101…
…1000010000010110
320122010200221002210
42121031120100112
520231011440040
61103021014250
7120461135364
oct23115302026
96563627083
102570421270
1110a9a325aa
125b89b4386
1331c6b7941
141a5542634
151009db480
hex99358416

2570421270 has 64 divisors (see below), whose sum is σ = 6535284480. Its totient is φ = 645211008.

The previous prime is 2570421253. The next prime is 2570421311. The reversal of 2570421270 is 721240752.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75129 + ... + 103851.

It is an arithmetic number, because the mean of its divisors is an integer number (102113820).

Almost surely, 22570421270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2570421270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3267642240).

2570421270 is an abundant number, since it is smaller than the sum of its proper divisors (3964863210).

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

2570421270 is a wasteful number, since it uses less digits than its factorization.

2570421270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28909.

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 2570421270 is about 50699.3221848182. The cubic root of 2570421270 is about 1369.8345068002.

The spelling of 2570421270 in words is "two billion, five hundred seventy million, four hundred twenty-one thousand, two hundred seventy".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 95 114 157 190 285 314 471 570 785 942 1570 2355 2983 4710 5966 8949 14915 17898 28723 29830 44745 57446 86169 89490 143615 172338 287230 430845 545737 861690 1091474 1637211 2728685 3274422 4509511 5457370 8186055 9019022 13528533 16372110 22547555 27057066 45095110 67642665 85680709 135285330 171361418 257042127 428403545 514084254 856807090 1285210635 2570421270