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69140121 = 323046707
BaseRepresentation
bin1000001111011…
…11111010011001
311211002200102020
410013233322121
5120144440441
610505525053
71466452461
oct407577231
9154080366
1069140121
1136033aa6
121b1a3789
131142a31b
14927aba1
15610ae66
hex41efe99

69140121 has 4 divisors (see below), whose sum is σ = 92186832. Its totient is φ = 46093412.

The previous prime is 69140111. The next prime is 69140167. The reversal of 69140121 is 12104196.

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 a cyclic number.

It is not a de Polignac number, because 69140121 - 214 = 69123737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 69140091 and 69140100.

It is not an unprimeable number, because it can be changed into a prime (69140111) 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, 11523351 + ... + 11523356.

It is an arithmetic number, because the mean of its divisors is an integer number (23046708).

Almost surely, 269140121 is an apocalyptic number.

It is an amenable number.

69140121 is a deficient number, since it is larger than the sum of its proper divisors (23046711).

69140121 is a wasteful number, since it uses less digits than its factorization.

69140121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23046710.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 69140121 is about 8315.0538783582. The cubic root of 69140121 is about 410.4340455913.

The spelling of 69140121 in words is "sixty-nine million, one hundred forty thousand, one hundred twenty-one".

Divisors: 1 3 23046707 69140121