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30937274 = 2197233337
BaseRepresentation
bin111011000000…
…1000010111010
32011012202221222
41312001002322
530404443044
63023032042
7523651064
oct166010272
964182858
1030937274
11165106a5
12a43b622
1365427a4
144174734
152ab18ee
hex1d810ba

30937274 has 16 divisors (see below), whose sum is σ = 46980648. Its totient is φ = 15278592.

The previous prime is 30937267. The next prime is 30937279. The reversal of 30937274 is 47273903.

It can be written as a sum of positive squares in 4 ways, for example, as 27300625 + 3636649 = 5225^2 + 1907^2 .

It is a super-2 number, since 2×309372742 = 1914229845102152, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30937279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91634 + ... + 91970.

Almost surely, 230937274 is an apocalyptic number.

30937274 is a deficient number, since it is larger than the sum of its proper divisors (16043374).

30937274 is a wasteful number, since it uses less digits than its factorization.

30937274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769.

The product of its (nonzero) digits is 31752, while the sum is 35.

The square root of 30937274 is about 5562.1285493955. The cubic root of 30937274 is about 313.9260444920.

The spelling of 30937274 in words is "thirty million, nine hundred thirty-seven thousand, two hundred seventy-four".

Divisors: 1 2 197 233 337 394 466 674 45901 66389 78521 91802 132778 157042 15468637 30937274