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30297968 = 243761839
BaseRepresentation
bin111001110010…
…0111101110000
32010000021222222
41303210331300
530224013333
63001220212
7515346161
oct163447560
963007888
1030297968
1116114348
12a191668
13637a7bc
144049768
1529d7298
hex1ce4f70

30297968 has 40 divisors (see below), whose sum is σ = 61350240. Its totient is φ = 14480640.

The previous prime is 30297947. The next prime is 30297973. The reversal of 30297968 is 86979203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35693 + ... + 36531.

It is an arithmetic number, because the mean of its divisors is an integer number (1533756).

Almost surely, 230297968 is an apocalyptic number.

It is an amenable number.

30297968 is an abundant number, since it is smaller than the sum of its proper divisors (31052272).

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

30297968 is a wasteful number, since it uses less digits than its factorization.

30297968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945 (or 939 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 30297968 is about 5504.3589999200. The cubic root of 30297968 is about 311.7485921240.

The spelling of 30297968 in words is "thirty million, two hundred ninety-seven thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 16 37 61 74 122 148 244 296 488 592 839 976 1678 2257 3356 4514 6712 9028 13424 18056 31043 36112 51179 62086 102358 124172 204716 248344 409432 496688 818864 1893623 3787246 7574492 15148984 30297968