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131233015 = 5148917627
BaseRepresentation
bin1111101001001…
…11010011110111
3100010221022212001
413310213103313
5232043424030
621004440131
73152314354
oct764472367
9303838761
10131233015
1168094341
1237b49047
132125aa94
141360162b
15b7c3cca
hex7d274f7

131233015 has 8 divisors (see below), whose sum is σ = 157594320. Its totient is φ = 104909952.

The previous prime is 131232931. The next prime is 131233027. The reversal of 131233015 is 510332131.

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 131233015 - 27 = 131232887 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131232983 and 131233001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1369 + ... + 16258.

It is an arithmetic number, because the mean of its divisors is an integer number (19699290).

Almost surely, 2131233015 is an apocalyptic number.

131233015 is a deficient number, since it is larger than the sum of its proper divisors (26361305).

131233015 is a wasteful number, since it uses less digits than its factorization.

131233015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19121.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 131233015 is about 11455.6979272325. The cubic root of 131233015 is about 508.1762555670.

Adding to 131233015 its reverse (510332131), we get a palindrome (641565146).

The spelling of 131233015 in words is "one hundred thirty-one million, two hundred thirty-three thousand, fifteen".

Divisors: 1 5 1489 7445 17627 88135 26246603 131233015