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30214418 = 2131162093
BaseRepresentation
bin111001101000…
…0100100010010
32002212001101112
41303100210102
530213330133
62555333322
7514550453
oct163204422
962761345
1030214418
11160675a3
12a151242
13634b770
14402712a
1529bc648
hex1cd0912

30214418 has 8 divisors (see below), whose sum is σ = 48807948. Its totient is φ = 13945104.

The previous prime is 30214397. The next prime is 30214439. The reversal of 30214418 is 81441203.

It is an interprime number because it is at equal distance from previous prime (30214397) and next prime (30214439).

It can be written as a sum of positive squares in 2 ways, for example, as 29084449 + 1129969 = 5393^2 + 1063^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×302144182 = 1825822110157448, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30214393 and 30214402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 581021 + ... + 581072.

Almost surely, 230214418 is an apocalyptic number.

30214418 is a deficient number, since it is larger than the sum of its proper divisors (18593530).

30214418 is a wasteful number, since it uses less digits than its factorization.

30214418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162108.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 30214418 is about 5496.7643209437. The cubic root of 30214418 is about 311.4617678971.

The spelling of 30214418 in words is "thirty million, two hundred fourteen thousand, four hundred eighteen".

Divisors: 1 2 13 26 1162093 2324186 15107209 30214418