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49001644 = 2271172541
BaseRepresentation
bin1011101011101…
…1010010101100
310102012112121201
42322323102230
5100021023034
64510135244
71133335636
oct272732254
9112175551
1049001644
112572972a
12144b1524
13a1c8b73
146717a56
15447e014
hex2ebb4ac

49001644 has 12 divisors (see below), whose sum is σ = 86961168. Its totient is φ = 24155600.

The previous prime is 49001611. The next prime is 49001651. The reversal of 49001644 is 44610094.

It is a super-2 number, since 2×490016442 = 4802322229405472, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85987 + ... + 86554.

It is an arithmetic number, because the mean of its divisors is an integer number (7246764).

Almost surely, 249001644 is an apocalyptic number.

It is an amenable number.

49001644 is a deficient number, since it is larger than the sum of its proper divisors (37959524).

49001644 is a wasteful number, since it uses less digits than its factorization.

49001644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172616 (or 172614 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 49001644 is about 7000.1174275865. The cubic root of 49001644 is about 365.9346634045.

The spelling of 49001644 in words is "forty-nine million, one thousand, six hundred forty-four".

Divisors: 1 2 4 71 142 284 172541 345082 690164 12250411 24500822 49001644