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1970935793 = 14913227757
BaseRepresentation
bin111010101111010…
…0001011111110001
312002100122220121222
41311132201133301
513014024421133
6523323554425
766561451331
oct16536413761
95070586558
101970935793
119215a6262
1247008ba15
1325543c2c8
14149a910c1
15b8070e98
hex757a17f1

1970935793 has 4 divisors (see below), whose sum is σ = 1984163700. Its totient is φ = 1957707888.

The previous prime is 1970935781. The next prime is 1970935807. The reversal of 1970935793 is 3975390791.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3975390791 = 4196960751.

It can be written as a sum of positive squares in 2 ways, for example, as 332953009 + 1637982784 = 18247^2 + 40472^2 .

It is a cyclic number.

It is not a de Polignac number, because 1970935793 - 28 = 1970935537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1970935093) 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, 6613730 + ... + 6614027.

It is an arithmetic number, because the mean of its divisors is an integer number (496040925).

Almost surely, 21970935793 is an apocalyptic number.

It is an amenable number.

1970935793 is a deficient number, since it is larger than the sum of its proper divisors (13227907).

1970935793 is a wasteful number, since it uses less digits than its factorization.

1970935793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13227906.

The product of its (nonzero) digits is 1607445, while the sum is 53.

The square root of 1970935793 is about 44395.2226371262. Note that the first 3 decimals coincide. The cubic root of 1970935793 is about 1253.7881442139.

The spelling of 1970935793 in words is "one billion, nine hundred seventy million, nine hundred thirty-five thousand, seven hundred ninety-three".

Divisors: 1 149 13227757 1970935793