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30693048156 = 22322775096047
BaseRepresentation
bin11100100101011100…
…101011111101011100
32221020001101101201100
4130211130223331130
51000324410020111
622033350313100
72134413414261
oct344534537534
987201341640
1030693048156
1112020475401
125b47058790
132b81b3c174
1416b24d3268
15be98c6756
hex72572bf5c

30693048156 has 72 divisors (see below), whose sum is σ = 78031175040. Its totient is φ = 10172370816.

The previous prime is 30693048151. The next prime is 30693048203. The reversal of 30693048156 is 65184039603.

30693048156 is a `hidden beast` number, since 30 + 6 + 93 + 0 + 481 + 56 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30693048151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5072725 + ... + 5078771.

It is an arithmetic number, because the mean of its divisors is an integer number (1083766320).

Almost surely, 230693048156 is an apocalyptic number.

30693048156 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

30693048156 is an abundant number, since it is smaller than the sum of its proper divisors (47338126884).

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

30693048156 is a wasteful number, since it uses less digits than its factorization.

30693048156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6843 (or 6838 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 30693048156 in words is "thirty billion, six hundred ninety-three million, forty-eight thousand, one hundred fifty-six".

Divisors: 1 2 3 4 6 9 12 18 36 277 509 554 831 1018 1108 1527 1662 2036 2493 3054 3324 4581 4986 6047 6108 9162 9972 12094 18141 18324 24188 36282 54423 72564 108846 140993 217692 281986 422979 563972 845958 1268937 1675019 1691916 2537874 3077923 3350038 5025057 5075748 6155846 6700076 9233769 10050114 12311692 15075171 18467538 20100228 27701307 30150342 36935076 55402614 60300684 110805228 852584671 1705169342 2557754013 3410338684 5115508026 7673262039 10231016052 15346524078 30693048156