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30143416 = 233979491
BaseRepresentation
bin111001011111…
…1001110111000
32002201102222211
41302333032320
530204042131
62554024504
7514133452
oct162771670
962642884
1030143416
1116019216
12a118134
136325354
1440092d2
1529a65b1
hex1cbf3b8

30143416 has 16 divisors (see below), whose sum is σ = 56667240. Its totient is φ = 15032160.

The previous prime is 30143413. The next prime is 30143423. The reversal of 30143416 is 61434103.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30143411) 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, 1570 + ... + 7921.

Almost surely, 230143416 is an apocalyptic number.

It is an amenable number.

30143416 is a deficient number, since it is larger than the sum of its proper divisors (26523824).

30143416 is a wasteful number, since it uses less digits than its factorization.

30143416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9894 (or 9890 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 30143416 is about 5490.3019953369. The cubic root of 30143416 is about 311.2176046239.

Adding to 30143416 its reverse (61434103), we get a palindrome (91577519).

The spelling of 30143416 in words is "thirty million, one hundred forty-three thousand, four hundred sixteen".

Divisors: 1 2 4 8 397 794 1588 3176 9491 18982 37964 75928 3767927 7535854 15071708 30143416