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121356701 = 338935809
BaseRepresentation
bin1110011101111…
…00000110011101
322110100120002122
413032330012131
5222031403301
620013032325
73002341424
oct716740635
9273316078
10121356701
11625590a4
12347856a5
131c1b05cb
14121902bb
15a9c281b
hex73bc19d

121356701 has 4 divisors (see below), whose sum is σ = 121395900. Its totient is φ = 121317504.

The previous prime is 121356691. The next prime is 121356713. The reversal of 121356701 is 107653121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 107653121 = 671606763.

It can be written as a sum of positive squares in 2 ways, for example, as 95844100 + 25512601 = 9790^2 + 5051^2 .

It is a cyclic number.

It is not a de Polignac number, because 121356701 - 210 = 121355677 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 (121356731) 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, 14516 + ... + 21293.

It is an arithmetic number, because the mean of its divisors is an integer number (30348975).

Almost surely, 2121356701 is an apocalyptic number.

It is an amenable number.

121356701 is a deficient number, since it is larger than the sum of its proper divisors (39199).

121356701 is an equidigital number, since it uses as much as digits as its factorization.

121356701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39198.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 121356701 is about 11016.2017501496. The cubic root of 121356701 is about 495.0942935015.

The spelling of 121356701 in words is "one hundred twenty-one million, three hundred fifty-six thousand, seven hundred one".

Divisors: 1 3389 35809 121356701