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49947426 = 23213919963
BaseRepresentation
bin1011111010001…
…0001100100010
310110222120222200
42332202030202
5100241304201
64542314030
71144355214
oct276421442
9113876880
1049947426
1126215271
1214888916
13a46a4b9
1468c25b4
1545b9386
hex2fa2322

49947426 has 24 divisors (see below), whose sum is σ = 109003440. Its totient is φ = 16528536.

The previous prime is 49947407. The next prime is 49947427. The reversal of 49947426 is 62474994.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (49947427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7480 + ... + 12483.

It is an arithmetic number, because the mean of its divisors is an integer number (4541810).

Almost surely, 249947426 is an apocalyptic number.

49947426 is an abundant number, since it is smaller than the sum of its proper divisors (59056014).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49947426 is a wasteful number, since it uses less digits than its factorization.

49947426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20110 (or 20107 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 49947426 is about 7067.3492909294. The cubic root of 49947426 is about 368.2739817329.

It can be divided in two parts, 499474 and 26, that added together give a triangular number (499500 = T999).

The spelling of 49947426 in words is "forty-nine million, nine hundred forty-seven thousand, four hundred twenty-six".

Divisors: 1 2 3 6 9 18 139 278 417 834 1251 2502 19963 39926 59889 119778 179667 359334 2774857 5549714 8324571 16649142 24973713 49947426