Base | Representation |
---|---|
bin | 10011001111111… |
… | …10010111010111 |
3 | 102020211201200210 |
4 | 21213332113113 |
5 | 312314132012 |
6 | 24004540503 |
7 | 4000335462 |
oct | 1147762727 |
9 | 366751623 |
10 | 161474007 |
11 | 831698a2 |
12 | 460b1733 |
13 | 275b8666 |
14 | 176342d9 |
15 | e29923c |
hex | 99fe5d7 |
161474007 has 16 divisors (see below), whose sum is σ = 237876480. Its totient is φ = 96911232.
The previous prime is 161473993. The next prime is 161474011. The reversal of 161474007 is 700474161.
It is not a de Polignac number, because 161474007 - 214 = 161457623 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (161474207) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67657 + ... + 70002.
It is an arithmetic number, because the mean of its divisors is an integer number (14867280).
Almost surely, 2161474007 is an apocalyptic number.
161474007 is a gapful number since it is divisible by the number (17) formed by its first and last digit.
161474007 is a deficient number, since it is larger than the sum of its proper divisors (76402473).
161474007 is a wasteful number, since it uses less digits than its factorization.
161474007 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 137702.
The product of its (nonzero) digits is 4704, while the sum is 30.
The square root of 161474007 is about 12707.2423050794. The cubic root of 161474007 is about 544.5455426478.
The spelling of 161474007 in words is "one hundred sixty-one million, four hundred seventy-four thousand, seven".
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