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30740808 = 2337182981
BaseRepresentation
bin111010101000…
…1000101001000
32010211210110110
41311101011020
530332201213
63014514320
7522202230
oct165210510
963753413
1030740808
111639702a
12a3659a0
1364a4237
144122cc0
152a735c3
hex1d51148

30740808 has 32 divisors (see below), whose sum is σ = 87831360. Its totient is φ = 8783040.

The previous prime is 30740807. The next prime is 30740813. The reversal of 30740808 is 80804703.

It is not an unprimeable number, because it can be changed into a prime (30740807) 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, 91323 + ... + 91658.

It is an arithmetic number, because the mean of its divisors is an integer number (2744730).

Almost surely, 230740808 is an apocalyptic number.

It is an amenable number.

30740808 is an abundant number, since it is smaller than the sum of its proper divisors (57090552).

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

30740808 is a wasteful number, since it uses less digits than its factorization.

30740808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182997 (or 182993 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 30740808 is about 5544.4393765285. The cubic root of 30740808 is about 313.2601076308.

The spelling of 30740808 in words is "thirty million, seven hundred forty thousand, eight hundred eight".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 182981 365962 548943 731924 1097886 1280867 1463848 2195772 2561734 3842601 4391544 5123468 7685202 10246936 15370404 30740808