Search a number
-
+
765450101 = 13149395173
BaseRepresentation
bin101101100111111…
…101011101110101
31222100022220010202
4231213331131311
53031423400401
6203542130245
724653134643
oct5547753565
91870286122
10765450101
11363092a99
12194420985
13c2776c70
1473934193
154730006b
hex2d9fd775

765450101 has 8 divisors (see below), whose sum is σ = 829865400. Its totient is φ = 701825472.

The previous prime is 765450089. The next prime is 765450113. The reversal of 765450101 is 101054567.

It is an interprime number because it is at equal distance from previous prime (765450089) and next prime (765450113).

It can be written as a sum of positive squares in 4 ways, for example, as 120340900 + 645109201 = 10970^2 + 25399^2 .

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 765450101 - 210 = 765449077 is a prime.

It is a super-3 number, since 3×7654501013 (a number of 28 digits) contains 333 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (765450121) 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, 195650 + ... + 199523.

It is an arithmetic number, because the mean of its divisors is an integer number (103733175).

Almost surely, 2765450101 is an apocalyptic number.

It is an amenable number.

765450101 is a deficient number, since it is larger than the sum of its proper divisors (64415299).

765450101 is a wasteful number, since it uses less digits than its factorization.

765450101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395335.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 765450101 is about 27666.7688933854. The cubic root of 765450101 is about 914.7567613670.

The spelling of 765450101 in words is "seven hundred sixty-five million, four hundred fifty thousand, one hundred one".

Divisors: 1 13 149 1937 395173 5137249 58880777 765450101