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49040102769 = 3731379198761
BaseRepresentation
bin101101101011000001…
…001001010101110001
311200120200121100011120
4231223001021111301
51300413231242034
634310111332453
73354154665360
oct555301112561
9150520540146
1049040102769
1119885950059
129607521129
134816c340b8
1425330617d7
151420485c49
hexb6b049571

49040102769 has 32 divisors (see below), whose sum is σ = 77342269440. Its totient is φ = 27047260800.

The previous prime is 49040102753. The next prime is 49040102773. The reversal of 49040102769 is 96720104094.

It is not a de Polignac number, because 49040102769 - 24 = 49040102753 is a prime.

It is a super-2 number, since 2×490401027692 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 49040102769.

It is not an unprimeable number, because it can be changed into a prime (49040102569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 147349 + ... + 346109.

It is an arithmetic number, because the mean of its divisors is an integer number (2416945920).

Almost surely, 249040102769 is an apocalyptic number.

It is an amenable number.

49040102769 is a deficient number, since it is larger than the sum of its proper divisors (28302166671).

49040102769 is a wasteful number, since it uses less digits than its factorization.

49040102769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199181.

The product of its (nonzero) digits is 108864, while the sum is 42.

The spelling of 49040102769 in words is "forty-nine billion, forty million, one hundred two thousand, seven hundred sixty-nine".

Divisors: 1 3 7 21 31 93 217 379 651 1137 2653 7959 11749 35247 82243 198761 246729 596283 1391327 4173981 6161591 18484773 43131137 75330419 129393411 225991257 527312933 1581938799 2335242989 7005728967 16346700923 49040102769