Search a number
-
+
49829381 = 719537069
BaseRepresentation
bin1011111000010…
…1011000000101
310110202121001122
42332011120011
5100224020011
64540003325
71143354110
oct276053005
9113677048
1049829381
1126144608
1214830545
13a428854
146891577
1545943db
hex2f85605

49829381 has 16 divisors (see below), whose sum is σ = 61084800. Its totient is φ = 39693888.

The previous prime is 49829371. The next prime is 49829383. The reversal of 49829381 is 18392894.

It is a happy number.

It is not a de Polignac number, because 49829381 - 26 = 49829317 is a prime.

It is a super-2 number, since 2×498293812 = 4965934421686322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49829383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3515 + ... + 10583.

It is an arithmetic number, because the mean of its divisors is an integer number (3817800).

Almost surely, 249829381 is an apocalyptic number.

It is an amenable number.

49829381 is a deficient number, since it is larger than the sum of its proper divisors (11255419).

49829381 is a wasteful number, since it uses less digits than its factorization.

49829381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7148.

The product of its digits is 124416, while the sum is 44.

The square root of 49829381 is about 7058.9929168402. The cubic root of 49829381 is about 367.9836284659.

The spelling of 49829381 in words is "forty-nine million, eight hundred twenty-nine thousand, three hundred eighty-one".

Divisors: 1 7 19 53 133 371 1007 7049 7069 49483 134311 374657 940177 2622599 7118483 49829381