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1970683345 = 51093736037
BaseRepresentation
bin111010101110110…
…0011110111010001
312002100012002100001
41311131203313101
513013443331340
6523314330001
766556350331
oct16535436721
95070162301
101970683345
11921443624
1246bb89901
13255381427
14149a270c1
15b802129a
hex75763dd1

1970683345 has 8 divisors (see below), whose sum is σ = 2365101864. Its totient is φ = 1576358784.

The previous prime is 1970683339. The next prime is 1970683357. The reversal of 1970683345 is 5433860791.

It can be written as a sum of positive squares in 4 ways, for example, as 267387904 + 1703295441 = 16352^2 + 41271^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1970683345 - 219 = 1970159057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1970683295 and 1970683304.

It is an unprimeable number.

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, 36667 + ... + 72703.

It is an arithmetic number, because the mean of its divisors is an integer number (295637733).

Almost surely, 21970683345 is an apocalyptic number.

It is an amenable number.

1970683345 is a deficient number, since it is larger than the sum of its proper divisors (394418519).

1970683345 is a wasteful number, since it uses less digits than its factorization.

1970683345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46979.

The product of its (nonzero) digits is 544320, while the sum is 46.

The square root of 1970683345 is about 44392.3793572726. The cubic root of 1970683345 is about 1253.7346112974.

The spelling of 1970683345 in words is "one billion, nine hundred seventy million, six hundred eighty-three thousand, three hundred forty-five".

Divisors: 1 5 10937 36037 54685 180185 394136669 1970683345