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30885108 = 22319135461
BaseRepresentation
bin111010111010…
…0010011110100
32011010010101220
41311310103310
530401310413
63021550340
7523343022
oct165642364
964103356
1030885108
1116485491
12a4153b0
136524b17
14415d712
152aa1223
hex1d744f4

30885108 has 24 divisors (see below), whose sum is σ = 75858720. Its totient is φ = 9753120.

The previous prime is 30885097. The next prime is 30885109. The reversal of 30885108 is 80158803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30885109) 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, 67503 + ... + 67958.

It is an arithmetic number, because the mean of its divisors is an integer number (3160780).

Almost surely, 230885108 is an apocalyptic number.

30885108 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

30885108 is an abundant number, since it is smaller than the sum of its proper divisors (44973612).

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

30885108 is a wasteful number, since it uses less digits than its factorization.

30885108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135487 (or 135485 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 30885108 is about 5557.4371791321. The cubic root of 30885108 is about 313.7494993193.

The spelling of 30885108 in words is "thirty million, eight hundred eighty-five thousand, one hundred eight".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 135461 270922 406383 541844 812766 1625532 2573759 5147518 7721277 10295036 15442554 30885108