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49072369 is a prime number
BaseRepresentation
bin1011101100110…
…0100011110001
310102100010122011
42323030203301
5100030303434
64511442521
71134052063
oct273144361
9112303564
1049072369
1125777885
1214526441
13a222108
146735733
154494e64
hex2ecc8f1

49072369 has 2 divisors, whose sum is σ = 49072370. Its totient is φ = 49072368.

The previous prime is 49072357. The next prime is 49072427. The reversal of 49072369 is 96327094.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30470400 + 18601969 = 5520^2 + 4313^2 .

It is a cyclic number.

It is not a de Polignac number, because 49072369 - 211 = 49070321 is a prime.

It is a super-2 number, since 2×490723692 = 4816194798544322, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (49078369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24536184 + 24536185.

It is an arithmetic number, because the mean of its divisors is an integer number (24536185).

Almost surely, 249072369 is an apocalyptic number.

It is an amenable number.

49072369 is a deficient number, since it is larger than the sum of its proper divisors (1).

49072369 is an equidigital number, since it uses as much as digits as its factorization.

49072369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 49072369 is about 7005.1673070670. The cubic root of 49072369 is about 366.1106322466.

The spelling of 49072369 in words is "forty-nine million, seventy-two thousand, three hundred sixty-nine".