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49172893 = 7111922961
BaseRepresentation
bin1011101110010…
…1000110011101
310102112020112021
42323211012131
5100042013033
64513540141
71134651130
oct273450635
9112466467
1049172893
1125836360
1214574651
13a258ab3
146760217
1544b4b2d
hex2ee519d

49172893 has 48 divisors (see below), whose sum is σ = 68031360. Its totient is φ = 34473600.

The previous prime is 49172881. The next prime is 49172897. The reversal of 49172893 is 39827194.

It is not a de Polignac number, because 49172893 - 25 = 49172861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49172897) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 806083 + ... + 806143.

It is an arithmetic number, because the mean of its divisors is an integer number (1417320).

Almost surely, 249172893 is an apocalyptic number.

It is an amenable number.

49172893 is a deficient number, since it is larger than the sum of its proper divisors (18858467).

49172893 is a wasteful number, since it uses less digits than its factorization.

49172893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146 (or 127 counting only the distinct ones).

The product of its digits is 108864, while the sum is 43.

The square root of 49172893 is about 7012.3386255942. The cubic root of 49172893 is about 366.3604524234.

The spelling of 49172893 in words is "forty-nine million, one hundred seventy-two thousand, eight hundred ninety-three".

Divisors: 1 7 11 19 29 61 77 133 203 209 319 361 427 551 671 1159 1463 1769 2233 2527 3857 3971 4697 6061 8113 10469 12383 12749 19459 22021 27797 33611 42427 73283 89243 115159 136213 154147 235277 242231 369721 638609 806113 1695617 2588047 4470263 7024699 49172893