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30526308 = 2234711327
BaseRepresentation
bin111010001110…
…0101101100100
32010102220020000
41310130231210
530303320213
63010141300
7520316661
oct164345544
963386200
1030526308
111625a95a
12a281830
13642a707
1440a8a68
152a2ec73
hex1d1cb64

30526308 has 60 divisors (see below), whose sum is σ = 80986752. Its totient is φ = 10024560.

The previous prime is 30526297. The next prime is 30526319. The reversal of 30526308 is 80362503.

It is an interprime number because it is at equal distance from previous prime (30526297) and next prime (30526319).

It is a super-2 number, since 2×305263082 = 1863710960221728, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 22341 + ... + 23667.

Almost surely, 230526308 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30526308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40493376).

30526308 is an abundant number, since it is smaller than the sum of its proper divisors (50460444).

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

30526308 is a wasteful number, since it uses less digits than its factorization.

30526308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1414 (or 1403 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 30526308 is about 5525.0618096090. The cubic root of 30526308 is about 312.5297951324.

The spelling of 30526308 in words is "thirty million, five hundred twenty-six thousand, three hundred eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 71 81 108 142 162 213 284 324 426 639 852 1278 1327 1917 2556 2654 3834 3981 5308 5751 7668 7962 11502 11943 15924 23004 23886 35829 47772 71658 94217 107487 143316 188434 214974 282651 376868 429948 565302 847953 1130604 1695906 2543859 3391812 5087718 7631577 10175436 15263154 30526308