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30008118 = 237714479
BaseRepresentation
bin111001001111…
…0001100110110
32002110120101210
41302132030312
530140224433
62551102250
7513031140
oct162361466
962416353
1030008118
1115a365a8
12a071986
1362a88aa
143db1c90
15297b463
hex1c9e336

30008118 has 16 divisors (see below), whose sum is σ = 68590080. Its totient is φ = 8573736.

The previous prime is 30008117. The next prime is 30008119. The reversal of 30008118 is 81180003.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30008117) and next prime (30008119).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30008094 and 30008103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30008113) 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, 357198 + ... + 357281.

It is an arithmetic number, because the mean of its divisors is an integer number (4286880).

Almost surely, 230008118 is an apocalyptic number.

30008118 is an abundant number, since it is smaller than the sum of its proper divisors (38581962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30008118 is a wasteful number, since it uses less digits than its factorization.

30008118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714491.

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 30008118 is about 5477.9665935455. The cubic root of 30008118 is about 310.7512753049.

The spelling of 30008118 in words is "thirty million, eight thousand, one hundred eighteen".

Divisors: 1 2 3 6 7 14 21 42 714479 1428958 2143437 4286874 5001353 10002706 15004059 30008118