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49119481 = 106945949
BaseRepresentation
bin1011101101100…
…0000011111001
310102102112021001
42323120003321
5100033310411
64512445001
71134336325
oct273300371
9112375231
1049119481
11257aa214
1214549761
13a23a6a8
146748985
1544a3dc1
hex2ed80f9

49119481 has 4 divisors (see below), whose sum is σ = 49166500. Its totient is φ = 49072464.

The previous prime is 49119479. The next prime is 49119487. The reversal of 49119481 is 18491194.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32959081 + 16160400 = 5741^2 + 4020^2 .

It is a cyclic number.

It is not a de Polignac number, because 49119481 - 21 = 49119479 is a prime.

It is a super-2 number, since 2×491194812 = 4825446827418722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49119481.

It is not an unprimeable number, because it can be changed into a prime (49119487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21906 + ... + 24043.

It is an arithmetic number, because the mean of its divisors is an integer number (12291625).

Almost surely, 249119481 is an apocalyptic number.

It is an amenable number.

49119481 is a deficient number, since it is larger than the sum of its proper divisors (47019).

49119481 is a wasteful number, since it uses less digits than its factorization.

49119481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47018.

The product of its digits is 10368, while the sum is 37.

The square root of 49119481 is about 7008.5291609581. The cubic root of 49119481 is about 366.2277564564.

The spelling of 49119481 in words is "forty-nine million, one hundred nineteen thousand, four hundred eighty-one".

Divisors: 1 1069 45949 49119481