Search a number
-
+
14879890 = 251487989
BaseRepresentation
bin111000110000…
…110010010010
31000222222101001
4320300302102
512302124030
61250532214
7240322414
oct70606222
930888331
1014879890
118443533
124b9706a
13310ca8c
141d949b4
15148dcca
hexe30c92

14879890 has 8 divisors (see below), whose sum is σ = 26783820. Its totient is φ = 5951952.

The previous prime is 14879881. The next prime is 14879899. The reversal of 14879890 is 9897841.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (14879881) and next prime (14879899).

It can be written as a sum of positive squares in 2 ways, for example, as 12967201 + 1912689 = 3601^2 + 1383^2 .

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

It is a super-2 number, since 2×148798902 = 442822252824200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 14879890.

It is not an unprimeable number, because it can be changed into a prime (14879899) 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, 743985 + ... + 744004.

Almost surely, 214879890 is an apocalyptic number.

14879890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

14879890 is a deficient number, since it is larger than the sum of its proper divisors (11903930).

14879890 is a wasteful number, since it uses less digits than its factorization.

14879890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1487996.

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 14879890 is about 3857.4460462850. The cubic root of 14879890 is about 245.9611832027.

The spelling of 14879890 in words is "fourteen million, eight hundred seventy-nine thousand, eight hundred ninety".

Divisors: 1 2 5 10 1487989 2975978 7439945 14879890