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126400465 = 5145917327
BaseRepresentation
bin1111000100010…
…11011111010001
322210211210211201
413202023133101
5224324303330
620313111201
73063246322
oct742133721
9283753751
10126400465
11653935a4
12363b8501
1320258299
1412b04449
15b16beca
hex788b7d1

126400465 has 8 divisors (see below), whose sum is σ = 151793280. Its totient is φ = 101045232.

The previous prime is 126400429. The next prime is 126400481. The reversal of 126400465 is 564004621.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-126400465 is a prime.

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 + ... + 15958.

It is an arithmetic number, because the mean of its divisors is an integer number (18974160).

Almost surely, 2126400465 is an apocalyptic number.

It is an amenable number.

126400465 is a deficient number, since it is larger than the sum of its proper divisors (25392815).

126400465 is a wasteful number, since it uses less digits than its factorization.

126400465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18791.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 126400465 is about 11242.7961379721. The cubic root of 126400465 is about 501.8603562313.

The spelling of 126400465 in words is "one hundred twenty-six million, four hundred thousand, four hundred sixty-five".

Divisors: 1 5 1459 7295 17327 86635 25280093 126400465