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15490241 = 137915083
BaseRepresentation
bin111011000101…
…110011000001
31002010222121122
4323011303001
512431141431
61312002025
7245444024
oct73056301
932128548
1015490241
118820058
125230315
133294830
1420b31bb
15155ea7b
hexec5cc1

15490241 has 8 divisors (see below), whose sum is σ = 16894080. Its totient is φ = 14116752.

The previous prime is 15490231. The next prime is 15490243. The reversal of 15490241 is 14209451.

15490241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-15490241 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 15490241.

It is not an unprimeable number, because it can be changed into a prime (15490243) 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, 6515 + ... + 8568.

It is an arithmetic number, because the mean of its divisors is an integer number (2111760).

Almost surely, 215490241 is an apocalyptic number.

It is an amenable number.

15490241 is a deficient number, since it is larger than the sum of its proper divisors (1403839).

15490241 is a wasteful number, since it uses less digits than its factorization.

15490241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15175.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 15490241 is about 3935.7643476204. The cubic root of 15490241 is about 249.2792091729.

Adding to 15490241 its reverse (14209451), we get a palindrome (29699692).

The spelling of 15490241 in words is "fifteen million, four hundred ninety thousand, two hundred forty-one".

Divisors: 1 13 79 1027 15083 196079 1191557 15490241