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30289249944 = 2333544325763
BaseRepresentation
bin11100001101011000…
…010100011010011000
32220011220120022201000
4130031120110122120
5444013021444234
621525323425000
72121411243102
oct341530243230
986156508630
1030289249944
1111933545878
125a53985160
132b1929ab05
141674a20572
15bc4212899
hex70d614698

30289249944 has 64 divisors (see below), whose sum is σ = 84155529600. Its totient is φ = 10094169888.

The previous prime is 30289249927. The next prime is 30289249957. The reversal of 30289249944 is 44994298203.

30289249944 is a `hidden beast` number, since 3 + 0 + 28 + 92 + 499 + 44 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1162807 + ... + 1188569.

It is an arithmetic number, because the mean of its divisors is an integer number (1314930150).

Almost surely, 230289249944 is an apocalyptic number.

It is an amenable number.

30289249944 is an abundant number, since it is smaller than the sum of its proper divisors (53866279656).

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

30289249944 is a wasteful number, since it uses less digits than its factorization.

30289249944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31221 (or 31211 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

It can be divided in two parts, 302892 and 49944, that added together give a square (352836 = 5942).

The spelling of 30289249944 in words is "thirty billion, two hundred eighty-nine million, two hundred forty-nine thousand, nine hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 108 216 5443 10886 16329 21772 25763 32658 43544 48987 51526 65316 77289 97974 103052 130632 146961 154578 195948 206104 231867 293922 309156 391896 463734 587844 618312 695601 927468 1175688 1391202 1854936 2782404 5564808 140228009 280456018 420684027 560912036 841368054 1121824072 1262052081 1682736108 2524104162 3365472216 3786156243 5048208324 7572312486 10096416648 15144624972 30289249944