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60121669 = 295773593
BaseRepresentation
bin1110010101011…
…0001001000101
311012010111102111
43211112021011
5110342343134
65544341021
71330011556
oct345261105
9135114374
1060121669
1130a34333
1218174771
13c5c046a
147db032d
155428c64
hex3956245

60121669 has 8 divisors (see below), whose sum is σ = 62319960. Its totient is φ = 57931776.

The previous prime is 60121651. The next prime is 60121687. The reversal of 60121669 is 96612106.

It is an interprime number because it is at equal distance from previous prime (60121651) and next prime (60121687).

It can be written as a sum of positive squares in 4 ways, for example, as 22752900 + 37368769 = 4770^2 + 6113^2 .

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 60121669 - 25 = 60121637 is a prime.

It is a super-2 number, since 2×601216692 = 7229230166691122, which contains 22 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 60121669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60121619) 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, 14937 + ... + 18529.

It is an arithmetic number, because the mean of its divisors is an integer number (7789995).

Almost surely, 260121669 is an apocalyptic number.

It is an amenable number.

60121669 is a deficient number, since it is larger than the sum of its proper divisors (2198291).

60121669 is a wasteful number, since it uses less digits than its factorization.

60121669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4199.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 60121669 is about 7753.8164151597. The cubic root of 60121669 is about 391.7512065788.

The spelling of 60121669 in words is "sixty million, one hundred twenty-one thousand, six hundred sixty-nine".

Divisors: 1 29 577 3593 16733 104197 2073161 60121669