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34456780 = 2251722839
BaseRepresentation
bin1000001101110…
…0010011001100
32101211120211001
42003130103030
532310104110
63230310044
7565610041
oct203342314
971746731
1034456780
11184a4986
12b658324
1371a5737
14480d1c8
15305963a
hex20dc4cc

34456780 has 12 divisors (see below), whose sum is σ = 72359280. Its totient is φ = 13782704.

The previous prime is 34456771. The next prime is 34456801. The reversal of 34456780 is 8765443.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 861400 + ... + 861439.

It is an arithmetic number, because the mean of its divisors is an integer number (6029940).

Almost surely, 234456780 is an apocalyptic number.

It is an amenable number.

34456780 is an abundant number, since it is smaller than the sum of its proper divisors (37902500).

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

34456780 is a wasteful number, since it uses less digits than its factorization.

34456780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722848 (or 1722846 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 34456780 is about 5869.9897785260. The cubic root of 34456780 is about 325.4055056705.

The spelling of 34456780 in words is "thirty-four million, four hundred fifty-six thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 1722839 3445678 6891356 8614195 17228390 34456780