[go: up one dir, main page]

Search a number
-
+
15390797 = 171316911
BaseRepresentation
bin111010101101…
…100001001101
31001221221012112
4322231201031
512420001142
61305513405
7244551062
oct72554115
931857175
1015390797
118762374
1251a2865
13325b4a6
142088c69
151540382
hexead84d

15390797 has 8 divisors (see below), whose sum is σ = 16422912. Its totient is φ = 14372800.

The previous prime is 15390769. The next prime is 15390803. The reversal of 15390797 is 79709351.

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 15390797 - 26 = 15390733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15090797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1229 + ... + 5682.

It is an arithmetic number, because the mean of its divisors is an integer number (2052864).

Almost surely, 215390797 is an apocalyptic number.

15390797 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

15390797 is a deficient number, since it is larger than the sum of its proper divisors (1032115).

15390797 is a wasteful number, since it uses less digits than its factorization.

15390797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7059.

The product of its (nonzero) digits is 59535, while the sum is 41.

The square root of 15390797 is about 3923.1106280603. The cubic root of 15390797 is about 248.7446240095.

The spelling of 15390797 in words is "fifteen million, three hundred ninety thousand, seven hundred ninety-seven".

Divisors: 1 17 131 2227 6911 117487 905341 15390797