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49981068 = 22321388363
BaseRepresentation
bin1011111010101…
…0011010001100
310111001022010200
42332222122030
5100243343233
64543133500
71144555254
oct276523214
9114038120
1049981068
1126238575
12148a4290
13a47c8c7
1468d0964
1545c4313
hex2faa68c

49981068 has 18 divisors (see below), whose sum is σ = 126341124. Its totient is φ = 16660344.

The previous prime is 49980991. The next prime is 49981079. The reversal of 49981068 is 86018994.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 694146 + ... + 694217.

Almost surely, 249981068 is an apocalyptic number.

It is an amenable number.

49981068 is an abundant number, since it is smaller than the sum of its proper divisors (76360056).

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

49981068 is a wasteful number, since it uses less digits than its factorization.

49981068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388373 (or 1388368 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 49981068 is about 7069.7289905625. The cubic root of 49981068 is about 368.3566466047.

The spelling of 49981068 in words is "forty-nine million, nine hundred eighty-one thousand, sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 1388363 2776726 4165089 5553452 8330178 12495267 16660356 24990534 49981068