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149620274887 = 409976937447
BaseRepresentation
bin1000101101011000010…
…0000011011011000111
3112022012021221110221111
42023112010003123013
54422410242244022
6152422401425451
713544505231646
oct2132604033307
9468167843844
10149620274887
11584a9821046
1224bb763b287
13111559b9445
14735518735d
153d5a5c3477
hex22d61036c7

149620274887 has 8 divisors (see below), whose sum is σ = 150005453600. Its totient is φ = 149235191424.

The previous prime is 149620274873. The next prime is 149620274899. The reversal of 149620274887 is 788472026941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-149620274887 is a prime.

It is a super-2 number, since 2×1496202748872 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149620274827) 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 7 ways as a sum of consecutive naturals, for example, 3976798 + ... + 4014244.

It is an arithmetic number, because the mean of its divisors is an integer number (18750681700).

Almost surely, 2149620274887 is an apocalyptic number.

149620274887 is a deficient number, since it is larger than the sum of its proper divisors (385178713).

149620274887 is an equidigital number, since it uses as much as digits as its factorization.

149620274887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47625.

The product of its (nonzero) digits is 10838016, while the sum is 58.

The spelling of 149620274887 in words is "one hundred forty-nine billion, six hundred twenty million, two hundred seventy-four thousand, eight hundred eighty-seven".

Divisors: 1 409 9769 37447 3995521 15315823 365819743 149620274887