Search a number
-
+
16123025 = 521514271
BaseRepresentation
bin111101100000…
…010010010001
31010100010122002
4331200102101
513111414100
61333323345
7254020622
oct75402221
933303562
1016123025
119112516
125496555
133456869
1421d9a49
1516372d5
hexf60491

16123025 has 12 divisors (see below), whose sum is σ = 20129664. Its totient is φ = 12810000.

The previous prime is 16123013. The next prime is 16123057. The reversal of 16123025 is 52032161.

It is a de Polignac number, because none of the positive numbers 2k-16123025 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16122988 and 16123006.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1640 + ... + 5910.

It is an arithmetic number, because the mean of its divisors is an integer number (1677472).

Almost surely, 216123025 is an apocalyptic number.

It is an amenable number.

16123025 is a deficient number, since it is larger than the sum of its proper divisors (4006639).

16123025 is a wasteful number, since it uses less digits than its factorization.

16123025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4432 (or 4427 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 16123025 is about 4015.3486772633. The cubic root of 16123025 is about 252.6284024904.

Adding to 16123025 its reverse (52032161), we get a palindrome (68155186).

The spelling of 16123025 in words is "sixteen million, one hundred twenty-three thousand, twenty-five".

Divisors: 1 5 25 151 755 3775 4271 21355 106775 644921 3224605 16123025