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137842093 = 197254847
BaseRepresentation
bin10000011011101…
…00110110101101
3100121101002210201
420031310312231
5240241421333
621402233501
73262431664
oct1015646655
9317332721
10137842093
1170898894
123a1b5891
132273308c
1414441ddb
15c17c17d
hex8374dad

137842093 has 4 divisors (see below), whose sum is σ = 145096960. Its totient is φ = 130587228.

The previous prime is 137842063. The next prime is 137842097. The reversal of 137842093 is 390248731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 137842093 - 213 = 137833901 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 (137842097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3627405 + ... + 3627442.

It is an arithmetic number, because the mean of its divisors is an integer number (36274240).

Almost surely, 2137842093 is an apocalyptic number.

It is an amenable number.

137842093 is a deficient number, since it is larger than the sum of its proper divisors (7254867).

137842093 is an equidigital number, since it uses as much as digits as its factorization.

137842093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7254866.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 137842093 is about 11740.6172324968. The cubic root of 137842093 is about 516.5677466304.

The spelling of 137842093 in words is "one hundred thirty-seven million, eight hundred forty-two thousand, ninety-three".

Divisors: 1 19 7254847 137842093