Search a number
-
+
15319068 = 2231276589
BaseRepresentation
bin111010011100…
…000000011100
31001211021210220
4322130000130
512410202233
61304201340
7244132002
oct72340034
931737726
1015319068
118713496
125169250
13323494b
14206aa72
151528eb3
hexe9c01c

15319068 has 12 divisors (see below), whose sum is σ = 35744520. Its totient is φ = 5106352.

The previous prime is 15319063. The next prime is 15319069. The reversal of 15319068 is 86091351.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-4 number, since 4×153190684 (a number of 30 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15319063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 638283 + ... + 638306.

It is an arithmetic number, because the mean of its divisors is an integer number (2978710).

Almost surely, 215319068 is an apocalyptic number.

It is an amenable number.

15319068 is an abundant number, since it is smaller than the sum of its proper divisors (20425452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15319068 is a wasteful number, since it uses less digits than its factorization.

15319068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276596 (or 1276594 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 15319068 is about 3913.9580989070. The cubic root of 15319068 is about 248.3575963361.

The spelling of 15319068 in words is "fifteen million, three hundred nineteen thousand, sixty-eight".

Divisors: 1 2 3 4 6 12 1276589 2553178 3829767 5106356 7659534 15319068