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30106408 = 2329129769
BaseRepresentation
bin111001011011…
…0001100101000
32002122120020011
41302312030220
530201401113
62553141304
7513620533
oct162661450
962576204
1030106408
1115aa3432
12a0ba834
136311557
143dd9a1a
15299a63d
hex1cb6328

30106408 has 16 divisors (see below), whose sum is σ = 58396500. Its totient is φ = 14534016.

The previous prime is 30106403. The next prime is 30106421. The reversal of 30106408 is 80460103.

It can be written as a sum of positive squares in 2 ways, for example, as 26193924 + 3912484 = 5118^2 + 1978^2 .

It is a super-3 number, since 3×301064083 (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (30106403) 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, 64653 + ... + 65116.

Almost surely, 230106408 is an apocalyptic number.

It is an amenable number.

30106408 is a deficient number, since it is larger than the sum of its proper divisors (28290092).

30106408 is a wasteful number, since it uses less digits than its factorization.

30106408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129804 (or 129800 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 30106408 is about 5486.9306538355. The cubic root of 30106408 is about 311.0901886534.

The spelling of 30106408 in words is "thirty million, one hundred six thousand, four hundred eight".

Divisors: 1 2 4 8 29 58 116 232 129769 259538 519076 1038152 3763301 7526602 15053204 30106408