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34312970 = 2517231383
BaseRepresentation
bin1000001011100…
…1001100001010
32101120021112202
42002321030022
532241003340
63223240202
7564440546
oct202711412
971507482
1034312970
111840692a
12b5a9062
137155143
1447b2a26
15302bc15
hex20b930a

34312970 has 48 divisors (see below), whose sum is σ = 67903488. Its totient is φ = 12468480.

The previous prime is 34312969. The next prime is 34312979. The reversal of 34312970 is 7921343.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (34312979) 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, 89399 + ... + 89781.

It is an arithmetic number, because the mean of its divisors is an integer number (1414656).

Almost surely, 234312970 is an apocalyptic number.

34312970 is a deficient number, since it is larger than the sum of its proper divisors (33590518).

34312970 is a wasteful number, since it uses less digits than its factorization.

34312970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455 (or 438 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 34312970 is about 5857.7273750150. The cubic root of 34312970 is about 324.9521665302.

The spelling of 34312970 in words is "thirty-four million, three hundred twelve thousand, nine hundred seventy".

Divisors: 1 2 5 10 17 31 34 62 85 155 170 289 310 383 527 578 766 1054 1445 1915 2635 2890 3830 5270 6511 8959 11873 13022 17918 23746 32555 44795 59365 65110 89590 110687 118730 201841 221374 403682 553435 1009205 1106870 2018410 3431297 6862594 17156485 34312970