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34312940 = 2259371831
BaseRepresentation
bin1000001011100…
…1001011101100
32101120021111122
42002321023230
532241003230
63223240112
7564440504
oct202711354
971507448
1034312940
1118406902
12b5a9038
13715511c
1447b2a04
15302bbe5
hex20b92ec

34312940 has 24 divisors (see below), whose sum is σ = 72173472. Its totient is φ = 13703040.

The previous prime is 34312933. The next prime is 34312963. The reversal of 34312940 is 4921343.

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, 17825 + ... + 19655.

It is an arithmetic number, because the mean of its divisors is an integer number (3007228).

Almost surely, 234312940 is an apocalyptic number.

It is an amenable number.

34312940 is an abundant number, since it is smaller than the sum of its proper divisors (37860532).

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

34312940 is a wasteful number, since it uses less digits than its factorization.

34312940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2777 (or 2775 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 34312940 is about 5857.7248142944. The cubic root of 34312940 is about 324.9520718278.

The spelling of 34312940 in words is "thirty-four million, three hundred twelve thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 937 1831 1874 3662 3748 4685 7324 9155 9370 18310 18740 36620 1715647 3431294 6862588 8578235 17156470 34312940