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7945506942 = 232945663833
BaseRepresentation
bin1110110011001011…
…01101000001111110
3202111201212120110220
413121211231001332
5112233022210232
63352231442210
7400616460162
oct73145550176
922451776426
107945506942
113408038a6a
121658b26366
139981738c9
14555360ca2
1531783442c
hex1d996d07e

7945506942 has 16 divisors (see below), whose sum is σ = 16438980240. Its totient is φ = 2557174592.

The previous prime is 7945506911. The next prime is 7945506949. The reversal of 7945506942 is 2496055497.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7945506949) 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 7 ways as a sum of consecutive naturals, for example, 22831743 + ... + 22832090.

It is an arithmetic number, because the mean of its divisors is an integer number (1027436265).

Almost surely, 27945506942 is an apocalyptic number.

7945506942 is an abundant number, since it is smaller than the sum of its proper divisors (8493473298).

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

7945506942 is a wasteful number, since it uses less digits than its factorization.

7945506942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45663867.

The product of its (nonzero) digits is 2721600, while the sum is 51.

The square root of 7945506942 is about 89137.5731215518. The cubic root of 7945506942 is about 1995.4485618961.

The spelling of 7945506942 in words is "seven billion, nine hundred forty-five million, five hundred six thousand, nine hundred forty-two".

Divisors: 1 2 3 6 29 58 87 174 45663833 91327666 136991499 273982998 1324251157 2648502314 3972753471 7945506942