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1945950479 = 11672640367
BaseRepresentation
bin111001111111100…
…1101100100001111
312000121122112012222
41303333031210033
512441130403404
6521032245555
766136210004
oct16377154417
95017575188
101945950479
11909490440
124638408bb
132502019b5
141466298ab
15b5c87dbe
hex73fcd90f

1945950479 has 8 divisors (see below), whose sum is σ = 2154540288. Its totient is φ = 1742641560.

The previous prime is 1945950467. The next prime is 1945950481. The reversal of 1945950479 is 9740595491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-1945950479 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1945950479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1945950499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1319447 + ... + 1320920.

It is an arithmetic number, because the mean of its divisors is an integer number (269317536).

Almost surely, 21945950479 is an apocalyptic number.

1945950479 is a deficient number, since it is larger than the sum of its proper divisors (208589809).

1945950479 is a wasteful number, since it uses less digits than its factorization.

1945950479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2640445.

The product of its (nonzero) digits is 2041200, while the sum is 53.

The square root of 1945950479 is about 44112.9287057661. The cubic root of 1945950479 is about 1248.4675575839.

The spelling of 1945950479 in words is "one billion, nine hundred forty-five million, nine hundred fifty thousand, four hundred seventy-nine".

Divisors: 1 11 67 737 2640367 29044037 176904589 1945950479