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121477087 = 1714894799
BaseRepresentation
bin1110011110110…
…01011111011111
322110120200020101
413033121133133
5222044231322
620015401531
73003352414
oct717313737
9273520211
10121477087
1162630596
12348232a7
131c223344
14121c210b
15a9e8327
hex73d97df

121477087 has 8 divisors (see below), whose sum is σ = 128736000. Its totient is φ = 114230784.

The previous prime is 121477063. The next prime is 121477141. The reversal of 121477087 is 780774121.

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-121477087 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 (121477487) 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, 22914 + ... + 27712.

It is an arithmetic number, because the mean of its divisors is an integer number (16092000).

Almost surely, 2121477087 is an apocalyptic number.

121477087 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

121477087 is a deficient number, since it is larger than the sum of its proper divisors (7258913).

121477087 is a wasteful number, since it uses less digits than its factorization.

121477087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6305.

The product of its (nonzero) digits is 21952, while the sum is 37.

The square root of 121477087 is about 11021.6644387316. The cubic root of 121477087 is about 495.2579507846.

The spelling of 121477087 in words is "one hundred twenty-one million, four hundred seventy-seven thousand, eighty-seven".

Divisors: 1 17 1489 4799 25313 81583 7145711 121477087