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127007993 = 743341903
BaseRepresentation
bin1111001000111…
…11110011111001
322211222200012202
413210133303321
5230003223433
620334115545
73101356460
oct744376371
9284880182
10127007993
1165768a92
123664bbb5
132040b978
1412c219d7
15b23bee8
hex791fcf9

127007993 has 8 divisors (see below), whose sum is σ = 145490688. Its totient is φ = 108609984.

The previous prime is 127007987. The next prime is 127008029. The reversal of 127007993 is 399700721.

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

It is not a de Polignac number, because 127007993 - 24 = 127007977 is a prime.

It is a super-2 number, since 2×1270079932 = 32262060571776098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (127007963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17921 + ... + 23982.

It is an arithmetic number, because the mean of its divisors is an integer number (18186336).

Almost surely, 2127007993 is an apocalyptic number.

It is an amenable number.

127007993 is a deficient number, since it is larger than the sum of its proper divisors (18482695).

127007993 is an equidigital number, since it uses as much as digits as its factorization.

127007993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42343.

The product of its (nonzero) digits is 23814, while the sum is 38.

The square root of 127007993 is about 11269.7822960339. The cubic root of 127007993 is about 502.6631144597.

The spelling of 127007993 in words is "one hundred twenty-seven million, seven thousand, nine hundred ninety-three".

Divisors: 1 7 433 3031 41903 293321 18143999 127007993