Search a number
-
+
3925470768 = 24381780641
BaseRepresentation
bin1110100111111001…
…1110111000110000
3101010120110120120020
43221332132320300
531014410031033
61445304243440
7166163644122
oct35176367060
911116416506
103925470768
11173490a31a
12916770580
134a735848b
142934b3212
1517e9526b3
hexe9f9ee30

3925470768 has 20 divisors (see below), whose sum is σ = 10140799608. Its totient is φ = 1308490240.

The previous prime is 3925470767. The next prime is 3925470779. The reversal of 3925470768 is 8670745293.

It is a self number, because there is not a number n which added to its sum of digits gives 3925470768.

It is not an unprimeable number, because it can be changed into a prime (3925470763) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 40890273 + ... + 40890368.

Almost surely, 23925470768 is an apocalyptic number.

It is an amenable number.

3925470768 is an abundant number, since it is smaller than the sum of its proper divisors (6215328840).

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

3925470768 is a wasteful number, since it uses less digits than its factorization.

3925470768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81780652 (or 81780646 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 51.

The square root of 3925470768 is about 62653.5774557208. The cubic root of 3925470768 is about 1577.4801965227.

The spelling of 3925470768 in words is "three billion, nine hundred twenty-five million, four hundred seventy thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 48 81780641 163561282 245341923 327122564 490683846 654245128 981367692 1308490256 1962735384 3925470768