Search a number
-
+
4021541031 = 31355398909
BaseRepresentation
bin1110111110110011…
…1101100010100111
3101101021020110012010
43233230331202213
531214003303111
61503015325303
7201441351264
oct35754754247
911337213163
104021541031
111784067332
12942980833
134c12243a1
142a216026b
151880ccaa6
hexefb3d8a7

4021541031 has 8 divisors (see below), whose sum is σ = 5362504560. Its totient is φ = 2680802432.

The previous prime is 4021541023. The next prime is 4021541039. The reversal of 4021541031 is 1301451204.

It is an interprime number because it is at equal distance from previous prime (4021541023) and next prime (4021541039).

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 4021541031 - 23 = 4021541023 is a prime.

It is a super-2 number, since 2×40215410312 = 32345584528033085922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4021540989 and 4021541007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021541039) 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, 8796 + ... + 90113.

It is an arithmetic number, because the mean of its divisors is an integer number (670313070).

Almost surely, 24021541031 is an apocalyptic number.

4021541031 is a deficient number, since it is larger than the sum of its proper divisors (1340963529).

4021541031 is a wasteful number, since it uses less digits than its factorization.

4021541031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112465.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 4021541031 is about 63415.6213483713. The cubic root of 4021541031 is about 1590.2454733540.

Adding to 4021541031 its reverse (1301451204), we get a palindrome (5322992235).

The spelling of 4021541031 in words is "four billion, twenty-one million, five hundred forty-one thousand, thirty-one".

Divisors: 1 3 13553 40659 98909 296727 1340513677 4021541031