Search a number
-
+
969147940 = 22548457397
BaseRepresentation
bin111001110001000…
…000011000100100
32111112121211001011
4321301000120210
53441100213230
6240100112004
733005423125
oct7161003044
92445554034
10969147940
11458071212
12230695604
13125a27427
14929da04c
155a139e2a
hex39c40624

969147940 has 12 divisors (see below), whose sum is σ = 2035210716. Its totient is φ = 387659168.

The previous prime is 969147913. The next prime is 969147973. The reversal of 969147940 is 49741969.

It can be written as a sum of positive squares in 2 ways, for example, as 120824064 + 848323876 = 10992^2 + 29126^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24228679 + ... + 24228718.

It is an arithmetic number, because the mean of its divisors is an integer number (169600893).

Almost surely, 2969147940 is an apocalyptic number.

It is an amenable number.

969147940 is an abundant number, since it is smaller than the sum of its proper divisors (1066062776).

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

969147940 is a wasteful number, since it uses less digits than its factorization.

969147940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48457406 (or 48457404 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 969147940 is about 31131.1410006122. The cubic root of 969147940 is about 989.6083680354.

The spelling of 969147940 in words is "nine hundred sixty-nine million, one hundred forty-seven thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 48457397 96914794 193829588 242286985 484573970 969147940