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56038649 = 235345971
BaseRepresentation
bin1101010111000…
…1010011111001
310220110001120112
43111301103321
5103321214044
65321034105
71250214662
oct325612371
9126401515
1056038649
11296a5737
1216925935
13b7c0b84
14762a369
154dbe09e
hex35714f9

56038649 has 8 divisors (see below), whose sum is σ = 59579712. Its totient is φ = 52589680.

The previous prime is 56038639. The next prime is 56038673. The reversal of 56038649 is 94683065.

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 56038649 - 28 = 56038393 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56038639) 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, 21767 + ... + 24204.

It is an arithmetic number, because the mean of its divisors is an integer number (7447464).

Almost surely, 256038649 is an apocalyptic number.

It is an amenable number.

56038649 is a deficient number, since it is larger than the sum of its proper divisors (3541063).

56038649 is a wasteful number, since it uses less digits than its factorization.

56038649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46047.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 56038649 is about 7485.8966730780. The cubic root of 56038649 is about 382.6742316441.

The spelling of 56038649 in words is "fifty-six million, thirty-eight thousand, six hundred forty-nine".

Divisors: 1 23 53 1219 45971 1057333 2436463 56038649