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49810131 = 327790637
BaseRepresentation
bin1011111000000…
…0101011010011
310110201121122200
42332000223103
5100222411011
64535334243
71143244020
oct276005323
9113647580
1049810131
11261310a8
1214821383
13a41cb67
146888547
15458d856
hex2f80ad3

49810131 has 12 divisors (see below), whose sum is σ = 82226352. Its totient is φ = 28462896.

The previous prime is 49810129. The next prime is 49810133. The reversal of 49810131 is 13101894.

49810131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (49810129) and next prime (49810133).

It is not a de Polignac number, because 49810131 - 21 = 49810129 is a prime.

It is a super-2 number, since 2×498101312 = 4962098300474322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 49810095 and 49810104.

It is not an unprimeable number, because it can be changed into a prime (49810133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 395256 + ... + 395381.

It is an arithmetic number, because the mean of its divisors is an integer number (6852196).

Almost surely, 249810131 is an apocalyptic number.

49810131 is a deficient number, since it is larger than the sum of its proper divisors (32416221).

49810131 is a wasteful number, since it uses less digits than its factorization.

49810131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790650 (or 790647 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 49810131 is about 7057.6292761805. The cubic root of 49810131 is about 367.9362360969.

The spelling of 49810131 in words is "forty-nine million, eight hundred ten thousand, one hundred thirty-one".

Divisors: 1 3 7 9 21 63 790637 2371911 5534459 7115733 16603377 49810131