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12007407 = 328314143
BaseRepresentation
bin101101110011…
…011111101111
3211121001001210
4231303133233
511033214112
61105205503
7204030006
oct55633757
924531053
1012007407
116861385
124030893
132645499
141847c3d
1510c2b3c
hexb737ef

12007407 has 8 divisors (see below), whose sum is σ = 16067584. Its totient is φ = 7976088.

The previous prime is 12007397. The next prime is 12007439. The reversal of 12007407 is 70470021.

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

It is not a de Polignac number, because 12007407 - 218 = 11745263 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 (12007477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6223 + ... + 7920.

It is an arithmetic number, because the mean of its divisors is an integer number (2008448).

Almost surely, 212007407 is an apocalyptic number.

12007407 is a deficient number, since it is larger than the sum of its proper divisors (4060177).

12007407 is a wasteful number, since it uses less digits than its factorization.

12007407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14429.

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 12007407 is about 3465.1705585728. The cubic root of 12007407 is about 228.9899438132.

Adding to 12007407 its reverse (70470021), we get a palindrome (82477428).

The spelling of 12007407 in words is "twelve million, seven thousand, four hundred seven".

Divisors: 1 3 283 849 14143 42429 4002469 12007407