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49780207 = 373733607
BaseRepresentation
bin1011110111100…
…1010111101111
310110200002121101
42331321113233
5100220431312
64534543531
71143060541
oct275712757
9113602541
1049780207
1126110674
1214807ba7
13a40c359
14687b691
154584a57
hex2f795ef

49780207 has 8 divisors (see below), whose sum is σ = 51276896. Its totient is φ = 48291552.

The previous prime is 49780189. The next prime is 49780219. The reversal of 49780207 is 70208794.

It is a happy number.

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-49780207 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49780007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11998 + ... + 15604.

It is an arithmetic number, because the mean of its divisors is an integer number (6409612).

Almost surely, 249780207 is an apocalyptic number.

49780207 is the 4074-th hex number.

49780207 is a deficient number, since it is larger than the sum of its proper divisors (1496689).

49780207 is a wasteful number, since it uses less digits than its factorization.

49780207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4017.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 49780207 is about 7055.5089823485. The cubic root of 49780207 is about 367.8625407177.

The spelling of 49780207 in words is "forty-nine million, seven hundred eighty thousand, two hundred seven".

Divisors: 1 37 373 3607 13801 133459 1345411 49780207