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1952340817 = 7278905831
BaseRepresentation
bin111010001011110…
…0101101101010001
312001001200012010011
41310113211231101
512444244401232
6521421234521
766244423510
oct16427455521
95031605104
101952340817
11912055609
12465a02a41
1325162b56b
14147410677
15b65eb547
hex745e5b51

1952340817 has 4 divisors (see below), whose sum is σ = 2231246656. Its totient is φ = 1673434980.

The previous prime is 1952340799. The next prime is 1952340821. The reversal of 1952340817 is 7180432591.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2k-1952340817 is a prime.

It is a super-4 number, since 4×19523408174 (a number of 38 digits) contains 4444 as substring.

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 1952340817.

It is not an unprimeable number, because it can be changed into a prime (1952340827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139452909 + ... + 139452922.

It is an arithmetic number, because the mean of its divisors is an integer number (557811664).

Almost surely, 21952340817 is an apocalyptic number.

It is an amenable number.

1952340817 is a deficient number, since it is larger than the sum of its proper divisors (278905839).

1952340817 is an equidigital number, since it uses as much as digits as its factorization.

1952340817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278905838.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 1952340817 is about 44185.3009155760. The cubic root of 1952340817 is about 1249.8326852323.

The spelling of 1952340817 in words is "one billion, nine hundred fifty-two million, three hundred forty thousand, eight hundred seventeen".

Divisors: 1 7 278905831 1952340817